Encycolorpedia

Dutch Boy Missoula Blue / #8aa2b4 हेक्स रंग कोड

#8aa2b4 Paint Chipहैक्साडेसीमल रंग कोड #8aa2b4 मध्यम प्रकाश सियान नीला रंग का होता है RGB रंग मॉडल के #8aa2b4 मे 54.12% लाल 63.53% हरा और 70.59% नीला होता है। HSL वर्ण स्थान के #8aa2b4 मे 206 डिग्री का रंग, 22% संतृप्ति और 62% हल्कापन होता है.इस रंग की अनुमानित तरंग दैर्ध्य 481.8 nm होती है।

रंग रूपांतर

संबंधित नामित रंग

रंग योजना

डाउनलोड: GIMP GPL Adobe ASE (Adobe Swatch Exchange) Sketch Palette

#b19e8d पूरक #8aa2b4 रैखिक ढाल

  1. #8aa2b4
  2. #92a1ad
  3. #99a1a7
  4. #a0a0a1
  5. #a69f9a
  6. #ac9f94
  7. #b19e8d

मोनोक्रोम रंग

  1. #6c8495
  2. #768e9f
  3. #8098aa
  4. #8aa2b4
  5. #94acbe
  6. #9eb7c9
  7. #a9c1d4

रंग ग्रेडियेंट

#8aa2b4 से काला

  1. #8aa2b4
  2. #9db1c0
  3. #b0c0cc
  4. #c4d0d9
  5. #d7dfe6
  6. #ebeff2
  7. #ffffff / #fff

#8aa2b4 से सफ़ेद

  1. #8aa2b4
  2. #728593
  3. #5a6974
  4. #444e56
  5. #2f353a
  6. #1b1e20
  7. #000000 / #000

पेंट रंग

सटीक मिलान पेंट्स

समान पेंट्स

  1. Tollens

    1. ★ Mer Baltique | EE113
      #88a1b2
      ΔE = 0.733 / LRV ≈ 33.9%
    2. TF252-2
      #88a9c0
      ΔE = 3.234 / LRV ≈ 37.4%
  2. Peintures MF

    1. ★ Denim délavé
      #88a2b6
      ΔE = 0.804 / LRV ≈ 34.5%
    2. Pierre de la liberté
      #97a1b4
      ΔE = 4.015 / LRV ≈ 35.4%
  3. Valspar Paint

    1. ★ Hydrangea
      #8aa0af
      ΔE = 1.361 / LRV ≈ 33.6%
    2. Silver Fox
      #97a4ad
      ΔE = 4.061 / LRV ≈ 36.1%
  4. Sigma

    1. ★ Cool Blue / S 3020-R90B
      #89a5b9
      ΔE = 1.382 / LRV ≈ 35.7%
    2. Cool Blue / S 3020-B
      #88a7b6
      ΔE = 2.836 / LRV ≈ 36.2%
  5. Kelly-Moore

    1. ★ Cruisin' / KM964-M
      #8fa2b1
      ΔE = 1.465 / LRV ≈ 34.9%
    2. Aviation / KM955-M
      #9aa2b7
      ΔE = 5.038 / LRV ≈ 36.1%
  6. General Paint

    1. ★ Oxygen / CL 2324M
      #8ca6b9
      ΔE = 1.486 / LRV ≈ 36.3%
    2. Northern Light / CL 3094M
      #8ba4af
      ΔE = 3.154 / LRV ≈ 35.1%
  7. Berger

    1. ★ Blue Horizon / 8272
      #8da2b0
      ΔE = 1.575 / LRV ≈ 34.6%
    2. Beecher Falls / 7305
      #91acc4
      ΔE = 4.332 / LRV ≈ 39.5%
  8. Vista Paint

    1. ★ Blue Horizon
      #8da2b0
      ΔE = 1.575 / LRV ≈ 34.6%
    2. Beecher Falls
      #91acc4
      ΔE = 4.332 / LRV ≈ 39.5%
  9. Scib Paints

    1. ★ Blue Horizon / 8272
      #8da2b0
      ΔE = 1.575 / LRV ≈ 34.6%
    2. Beecher Falls / 7305
      #91acc4
      ΔE = 4.332 / LRV ≈ 39.5%
  10. Diamond Vogel

    1. ★ Breath-Taking View / 0632
      #879eae
      ΔE = 1.681 / LRV ≈ 32.7%
    2. In Good Taste / 0505
      #8f9da8
      ΔE = 3.440 / LRV ≈ 32.8%
  11. Dutch Boy

    1. ★ Enveloping Calm
      #91a3b5
      ΔE = 1.761 / LRV ≈ 35.5%
    2. Everlasting Lavender
      #99a0b2
      ΔE = 4.726 / LRV ≈ 35.1%
  12. Sherwin-Williams

    1. ★ Baby Blue Eyes - 9070
      #83a2b4
      ΔE = 1.790 / LRV ≈ 34.0%
    2. Solitude - 6535
      #99a7b8
      ΔE = 3.611 / LRV ≈ 37.9%
  13. Clark+Kensington

    1. ★ Newport Harbor / EXTCC-59
      #85a5b8
      ΔE = 1.959 / LRV ≈ 35.4%
    2. Low Tide / 1026
      #78a0b1
      ΔE = 4.364 / LRV ≈ 32.3%
  14. Kansai Paint

    1. ★ Thunder Blue
      #82a3b6
      ΔE = 2.095 / LRV ≈ 34.3%
  15. Sikkens

    1. ★ T0.10.60
      #92a4b2
      ΔE = 2.116 / LRV ≈ 35.9%
    2. U0.10.60
      #99a3b4
      ΔE = 3.938 / LRV ≈ 36.3%
  16. Little Greene

    1. ★ Grey Stone
      #8aa0ad
      ΔE = 2.122 / LRV ≈ 33.6%
    2. James
      #8597a3
      ΔE = 4.599 / LRV ≈ 29.8%
  17. Teknos

    1. ★ GBI048
      #869eb4
      ΔE = 2.170 / LRV ≈ 32.8%
    2. GBI079
      #7da3b9
      ΔE = 3.177 / LRV ≈ 34.1%
  18. Jedynka

    1. Pd 1101
      #809fb5
      ΔE = 2.424 / LRV ≈ 32.7%
  19. Focoltone

    1. 5021
      #80a3b8
      ΔE = 2.511 / LRV ≈ 34.2%
    2. 2184
      #92aaba
      ΔE = 3.062 / LRV ≈ 38.4%
  20. Crown Paint

    1. Vivid
      #849fad
      ΔE = 2.547 / LRV ≈ 32.7%
    2. Juliette
      #8fadbb
      ΔE = 4.474 / LRV ≈ 39.3%
  21. Humbrol

    1. 128 Us Compass Grey
      #82a5b8
      ΔE = 2.584 / LRV ≈ 35.1%
    2. 128 Us Compass Grey
      #81a6b6
      ΔE = 3.588 / LRV ≈ 35.3%
  22. Mylands of London

    1. Pompadour
      #8aa6be
      ΔE = 2.679 / LRV ≈ 36.4%
    2. Light Blue
      #7fa8be
      ΔE = 3.958 / LRV ≈ 36.2%
  23. Nerolac

    1. Sorcerer - 2984
      #859baf
      ΔE = 2.702 / LRV ≈ 31.5%
    2. Sheltering Blue - 4278
      #92abb7
      ΔE = 4.124 / LRV ≈ 38.7%
  24. Glidden

    1. Americana / PPG1152-4
      #7f9daf
      ΔE = 2.723 / LRV ≈ 31.7%
    2. Walden Pond / PPG1159-4
      #789bb6
      ΔE = 4.850 / LRV ≈ 30.8%
  25. British Standard

    1. BS 2660 BS 8-088 - Wedgewood blue
      #83a3b2
      ΔE = 2.726 / LRV ≈ 34.2%
  26. KILZ

    1. Winding River / D721
      #839eac
      ΔE = 2.777 / LRV ≈ 32.3%
    2. Sea Lavender / B771
      #919eb8
      ΔE = 5.001 / LRV ≈ 33.9%
  27. Jotun

    1. 5351 / Havbris
      #85a1ae
      ΔE = 2.790 / LRV ≈ 33.5%
    2. 4109 / Gustaviansk Blå
      #9da9b2
      ΔE = 5.119 / LRV ≈ 38.8%
  28. Toyo Ink

    1. CF10698
      #91a9b8
      ΔE = 2.843 / LRV ≈ 37.9%
    2. CF10685
      #7d9fab
      ΔE = 4.598 / LRV ≈ 32.1%
  29. Levis

    1. Mild Indigo
      #7e9db2
      ΔE = 2.849 / LRV ≈ 31.8%
    2. Atl Soleil B8
      #8699ad
      ΔE = 3.495 / LRV ≈ 30.9%
  30. Caparol

    1. 2453
      #94a4b8
      ΔE = 2.855 / LRV ≈ 36.3%
    2. 70 2 200 / Verona 5
      #909ca8
      ΔE = 3.652 / LRV ≈ 32.5%
  31. Porter Paints

    1. Americana / 452-4
      #7e9daf
      ΔE = 2.913 / LRV ≈ 31.6%
    2. Walden Pond / 450-4
      #779bb6
      ΔE = 4.956 / LRV ≈ 30.7%
  32. Brighto Paints

    1. 4-37-4 Moon Shadow
      #889cb2
      ΔE = 2.924 / LRV ≈ 32.2%
    2. 5-34-4 Dawn Glow
      #819ba5
      ΔE = 4.750 / LRV ≈ 30.8%
  33. Resene

    1. El Nino B69-017-252
      #92a0ac
      ΔE = 2.926 / LRV ≈ 34.2%
    2. Bali Hai B70-024-230
      #849ca9
      ΔE = 3.203 / LRV ≈ 31.5%
  34. Olympic

    1. Freshwater C53-3
      #7fa4ba
      ΔE = 2.956 / LRV ≈ 34.6%
    2. Feelin' Blue C54-3
      #7d9fb1
      ΔE = 3.018 / LRV ≈ 32.3%
  35. Dulux

    1. 30BB 32/139
      #879bb0
      ΔE = 2.965 / LRV ≈ 31.7%
    2. 50BB 39/104
      #9ca7b7
      ΔE = 4.319 / LRV ≈ 38.1%
  36. Benjamin Moore

    1. Labrador Blue / 1670
      #809ead
      ΔE = 3.032 / LRV ≈ 32.1%
    2. Whipple Blue / HC-152
      #779fb1
      ΔE = 4.362 / LRV ≈ 31.9%
  37. Cloverdale Paint

    1. Blue Horizon / 8272
      #8fa5b0
      ΔE = 3.042 / LRV ≈ 35.9%
    2. Brookview / 8265
      #92a4ac
      ΔE = 4.103 / LRV ≈ 35.6%
  38. Dunn-Edwards

    1. Lake Winnipeg / 568
      #80a1b0
      ΔE = 3.112 / LRV ≈ 33.2%
    2. Frozen Lake / 514
      #7b9cb3
      ΔE = 3.639 / LRV ≈ 31.2%
  39. California Paints

    1. DE 5794 - Lake Winnipeg
      #80a1b0
      ΔE = 3.112 / LRV ≈ 33.2%
    2. DE 5815 - Frozen Lake
      #7b9cb3
      ΔE = 3.639 / LRV ≈ 31.2%
  40. CIL

    1. Florentine Blue
      #899bb0
      ΔE = 3.162 / LRV ≈ 31.9%
    2. Barton Blue
      #81a9c0
      ΔE = 3.998 / LRV ≈ 36.8%
  41. Volkswagen

    1. Light Silver
      #96a6b2
      ΔE = 3.243 / LRV ≈ 37.0%
    2. Whisper Blue
      #86abc6
      ΔE = 4.756 / LRV ≈ 38.3%
  42. Ralph Lauren

    1. Bellflower Blue / RLVM282
      #8699ab
      ΔE = 3.326 / LRV ≈ 30.8%
    2. Spanish Bluebell / RLVM283
      #9aabba
      ΔE = 4.189 / LRV ≈ 39.5%
  43. Flügger

    1. Klassisk inde: Turkish Blue (No.54)
      #91aab8
      ΔE = 3.352 / LRV ≈ 38.2%
  44. Zoffany

    1. Wedgewood Blue
      #92a8bf
      ΔE = 3.371 / LRV ≈ 37.9%
  45. Nippon Paint

    1. Miner Gray / NP N 2004 T
      #899ba7
      ΔE = 3.406 / LRV ≈ 31.6%
    2. Cottage Blue / NP PB 1511 T
      #869eba
      ΔE = 4.243 / LRV ≈ 33.1%
  46. Coronado Paint

    1. 7296 - Far Horizons
      #80a3bd
      ΔE = 3.410 / LRV ≈ 34.5%
    2. 7368 - Thunder Bay
      #779fb2
      ΔE = 4.230 / LRV ≈ 31.9%
  47. ICI Paints

    1. Marine Reef 90BG 37/162
      #7aa0b4
      ΔE = 3.522 / LRV ≈ 32.6%
    2. 4103 Barton Blue 90BG 38/185
      #77a2b9
      ΔE = 4.296 / LRV ≈ 33.3%
  48. Magnolia Home

    1. Winter Solstice / JG-89
      #8ca8b4
      ΔE = 3.588 / LRV ≈ 36.9%
  49. Beckers

    1. Tromb 769 / S 5010-R90B
      #8ba4ae
      ΔE = 3.591 / LRV ≈ 35.1%
  50. Opaltone / OMS

    1. 6106
      #89a6c1
      ΔE = 3.693 / LRV ≈ 36.4%
    2. 6112
      #97a9c2
      ΔE = 4.840 / LRV ≈ 38.8%
  51. GM / General Motors

    1. Arctic Blue
      #7b9cb4
      ΔE = 3.787 / LRV ≈ 31.3%
    2. Azure Blue
      #779fba
      ΔE = 4.648 / LRV ≈ 32.3%
  52. AMC

    1. Skyway Blue
      #8aabbb
      ΔE = 3.794 / LRV ≈ 38.1%
  53. TRUMATCH

    1. 31-e6
      #7d9ab1
      ΔE = 3.795 / LRV ≈ 30.6%
    2. 30-e5
      #7ca9c1
      ΔE = 4.829 / LRV ≈ 36.5%
  54. Brillux

    1. 63.12.15
      #7ca4bd
      ΔE = 3.846 / LRV ≈ 34.5%
    2. 69.09.18
      #779ba9
      ΔE = 5.243 / LRV ≈ 30.2%
  55. Audi

    1. Bahia Blue / L50A
      #7d9baa
      ΔE = 3.870 / LRV ≈ 30.7%
    2. Sharkblau Metallic / 5R, LA5Q
      #9aacbd
      ΔE = 4.383 / LRV ≈ 40.0%
  56. Sto

    1. 35221
      #7fa6c0
      ΔE = 3.957 / LRV ≈ 35.6%
    2. 35332
      #7d97a6
      ΔE = 4.633 / LRV ≈ 29.2%
  57. Pratt & Lambert

    1. Smiling Eyes 27-24
      #86a0bc
      ΔE = 3.962 / LRV ≈ 33.8%
    2. Argosy 26-21
      #849ea8
      ΔE = 4.127 / LRV ≈ 32.2%
  58. Games Workshop - Citadel

    1. Stormfang
      #80a7c1
      ΔE = 4.043 / LRV ≈ 36.1%
  59. Model Master

    1. Model Master 1721
      #899da6
      ΔE = 4.070 / LRV ≈ 32.2%
  60. Bristol

    1. French Blue / P114-C4
      #7da7be
      ΔE = 4.074 / LRV ≈ 35.7%
    2. Academy Blue / P117-C4
      #78a5b6
      ΔE = 5.067 / LRV ≈ 34.3%
  61. Earthpaint

    1. 4-34-4 Windsong
      #7b9ead
      ΔE = 4.076 / LRV ≈ 31.7%
    2. 3-35-4 Crushed Blue Stone
      #74a0b7
      ΔE = 4.733 / LRV ≈ 32.3%
  62. Ford

    1. Regency Gray
      #7f99a7
      ΔE = 4.127 / LRV ≈ 30.1%
    2. Aqua Blue Diamond Fire
      #769db5
      ΔE = 4.432 / LRV ≈ 31.3%
  63. Tikkurila

    1. 0515 / Smoke blue
      #829ba6
      ΔE = 4.257 / LRV ≈ 30.9%
    2. 2113
      #92a0a7
      ΔE = 4.485 / LRV ≈ 34.0%
  64. Crown Diamond

    1. 7322-42 Canopy of Heaven
      #77a2b8
      ΔE = 4.279 / LRV ≈ 33.2%
    2. 7320-52 Audacious Blue
      #769eae
      ΔE = 4.921 / LRV ≈ 31.4%
  65. Martha Stewart Living

    1. Cornflower C20
      #83abc0
      ΔE = 4.293 / LRV ≈ 37.8%
    2. Delphinium C19
      #79a6bb
      ΔE = 4.583 / LRV ≈ 34.9%
  66. Disney

    1. P5-2 Eeyore's Blues
      #879eba
      ΔE = 4.307 / LRV ≈ 33.1%
  67. Asian Paints

    1. Twilight Blue / 9224
      #7da8bf
      ΔE = 4.336 / LRV ≈ 36.1%
    2. Calming Blue / 9200
      #799cb9
      ΔE = 5.115 / LRV ≈ 31.3%
  68. PPG Pittsburgh Paints

    1. Society Street Chs-34
      #7a98ac
      ΔE = 4.360 / LRV ≈ 29.6%
    2. Walden Pond / PPG1159-4
      #789bb6
      ΔE = 4.850 / LRV ≈ 30.8%
  69. Taubmans

    1. Solitary Swirl / T146-5
      #7a98aa
      ΔE = 4.432 / LRV ≈ 29.5%
    2. Academy Blue / T12 44.E7
      #78a5b6
      ΔE = 5.067 / LRV ≈ 34.3%
  70. Graham & Brown

    1. Little Boy Blue
      #9aadbe
      ΔE = 4.593 / LRV ≈ 40.5%
  71. Federal Standard

    1. Federal Standard 36320
      #98a1a9
      ΔE = 4.685 / LRV ≈ 35.0%
  72. Behr

    1. Delightfully Blue EBC-42
      #779eae
      ΔE = 4.704 / LRV ≈ 31.4%
    2. Saga Blue S480-4
      #75a0b2
      ΔE = 4.860 / LRV ≈ 32.1%
  73. Green Planet Paints

    1. Triton
      #97adb9
      ΔE = 4.749 / LRV ≈ 40.0%
  74. Laura Ashley

    1. 1310 Powder Blue 4
      #799dab
      ΔE = 4.767 / LRV ≈ 31.1%
  75. Pantone / PMS

    1. P 117-12 U
      #749db1
      ΔE = 4.769 / LRV ≈ 31.0%
    2. 2207 U
      #739db3
      ΔE = 4.890 / LRV ≈ 31.0%
  76. Plascon

    1. Adonis Blue B2-D2-2
      #74a0b8
      ΔE = 4.773 / LRV ≈ 32.3%
    2. Winter Haven B2-E2-3
      #88acc8
      ΔE = 5.180 / LRV ≈ 38.9%
  77. Albany Paint

    1. French Blue
      #8d9cb6
      ΔE = 4.798 / LRV ≈ 32.8%
  78. Dulux Australia

    1. Lycian Way / D9
      #7999a8
      ΔE = 4.839 / LRV ≈ 29.7%
    2. Mauve Grey / G82
      #9faab7
      ΔE = 5.086 / LRV ≈ 39.5%
  79. Dupont

    1. CAS939
      #9aaec0
      ΔE = 4.865 / LRV ≈ 40.9%
  80. Sico

    1. 6172-52 Mozart
      #8c97aa
      ΔE = 4.898 / LRV ≈ 30.6%
    2. 6171-41 Galley
      #9da9b2
      ΔE = 5.119 / LRV ≈ 38.8%
  81. Devoe Paint

    1. Periwinkle Blue / 30BB 33/235
      #7e9ebc
      ΔE = 4.902 / LRV ≈ 32.5%
    2. Tibet Blue / 10BB 30/203
      #7698af
      ΔE = 5.004 / LRV ≈ 29.4%
  82. Natural Color System / NCS

    1. S 3010-R90B
      #8f98a4
      ΔE = 4.911 / LRV ≈ 31.0%
    2. S 3010-B
      #8d9ba2
      ΔE = 5.001 / LRV ≈ 31.7%
  83. Evonik-Degussa

    1. 3234T Newport Blue
      #7d99a5
      ΔE = 4.927 / LRV ≈ 29.9%
    2. 1234T Blue Shoal
      #749eb0
      ΔE = 4.990 / LRV ≈ 31.3%
  84. Colortrend

    1. Pool
      #809dbb
      ΔE = 4.981 / LRV ≈ 32.3%
    2. Meetinghouse Blue
      #769cab
      ΔE = 5.157 / LRV ≈ 30.6%
  85. Chrysler

    1. Moonstone Blue
      #7a97a6
      ΔE = 5.025 / LRV ≈ 29.0%
    2. Alpine Blue
      #7896ad
      ΔE = 5.239 / LRV ≈ 28.8%
  86. Rodda Paint

    1. Meetinghouse Blue H46
      #769cab
      ΔE = 5.157 / LRV ≈ 30.6%
  87. Homebase

    1. China Blue
      #8eacc8
      ΔE = 5.210 / LRV ≈ 39.4%

रंग अंडा सिमुलेशन

Monochromacy

Dichromacy

Trichromacy

#8aa2b4 एचटीएमएल और सीएसएस / उदाहरण

#8aa2b4 अग्रभूमि

जल में रहकर मगर से बैर ठीक नहीं

<p style="color: #8aa2b4">…</p>

#8aa2b4 पृष्ठभूमि

सौ सोनार की, एक लोहार की

<p style="background-color: #8aa2b4">…</p>

#8aa2b4 पाठ छाया

घर की मुर्गी दाल बराबर

<p style="text-shadow: 0.1em 0.1em 0.15em #8aa2b4">…</p>

रंग चार्ट

रंगीन स्थान रूपांतरण

दशमलव पद्धति
9085620
द्वयाधारी संख्या पद्धति
10001010, 10100010, 10110100
हेक्साडेसिमल
#8aa2b4
LRV
≈ 34.5%
निकटतम छोटा हेक्साडेसिमल
#8ab ΔE = 3.448
RGB
rgb(138, 162, 180)
RGBA
rgba(138, 162, 180, 1.0)
rg वार्णिकता
r: 0.287, g: 0.338, b: 0.375
RYB
लाल: 54.118%, पीला: 60.107%, नीला: 70.588%
Android / android.graphics.Color
-7691596 / 0xff8aa2b4
HSL
hsl(206, 22%, 62%)
HSLA
hsla(206, 22%, 62%, 1.0)
HSV / HSB
रंग: 206° (205.714), saturation: 23% (0.233), मूल्य: 71% (0.706)
HSP
रंग: 205.714, saturation: 23.333%, कथित चमक: 61.748%
HSLuv (HUSL)
H: 232.924, S: 29.653, L: 65.388
Cubehelix
H: -159.066, S: 0.251, L: 0.615
TSL
T: -2.075, S: 0.062, L: 0.615
CMYK
सियान: 23% (0.233), मैजंटा: 10% (0.100), पीला: 0% (0.000), काला: 29% (0.294)
CMY
सियान: 46% (0.459), मैजंटा: 36% (0.365), पीला: 29% (0.294)
XYZ
X: 31.637, Y: 34.538, Z: 48.171
xyY
x: 0.277, y: 0.302, Y: 34.538
CIELab
L: 65.388, a: -4.291, b: -12.072
CIELuv
L: 65.388, u: -13.218, v: -17.492
CIELCH / LCHab
L: 65.388, C: 12.812, H: 250.431
CIELUV / LCHuv
L: 65.388, C: 21.925, H: 232.924
Hunter-Lab
L: 58.769, a: -6.753, b: -7.459
CIECAM02
J: 55.468, C: 20.528, h: 236.261, Q: 146.735, M: 17.952, s: 34.977, H: 298.553
OSA-UCS
लपट: -10.132, पीला: -2.101, हरा: 1.381
LMS
L: 30.199, M: 36.662, S: 47.936
YCbCr
Y: 150.754, Cb: 139.454, Cr: 116.186
YCgCo
Y: 160.500, Cg: 1.500, Co: 24.000
YDbDr
Y: 156.876, Db: 34.794, Dr: 35.898
YPbPr
Y: 158.184, Pb: 11.760, Pr: -12.828
xvYCC
Y: 151.852, Cb: 138.330, Cr: 116.731
YIQ
Y: 156.876, I: -20.080, Q: 0.525
YUV
Y: 156.876, U: 11.381, V: -16.560
Munsell रंग प्रणाली
2.5PB 6/4 ΔE = 1.967
ब्रांड रंग
Foursquare ΔE = 9.936

यादृच्छिक रंग

लाल

हरा

नीला