Encycolorpedia

Laura Ashley 6-9 Pale Denim / ‎#6da3bf أكواد الألوان الست عشرية

#6da3bf Paint Chipالكود اللوني الست عشري‎#6da3bf هو ظل للأزرق سيان.‏ في نموذج RGB للألوان يتكون ‎#6da3bf من‎42.75% أحمر، و‎63.92% أخضر، و‎74.9% أزرق. وفي الفضاء اللوني HSL يتكون ‎#6da3bf من صبغة لون200 درجة، و ‎39% تشبع، و ‎59% إضاءة. وهذا اللون له طول موجي يبلغ تقريباً 482.93 نانومتر.

الاختلافات اللون

ألوان مسماة

الألوان

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

‎#6da3bf انحدار خطي إلى التكميلي ‎#b89074

  1. ‎#6da3bf
  2. ‎#80a0b2
  3. ‎#8e9da6
  4. ‎#9b9a99
  5. ‎#a6978d
  6. ‎#af9380
  7. ‎#b89074

ألوان أحادية

  1. ‎#4f85a0
  2. ‎#598fab
  3. ‎#6399b5
  4. ‎#6da3bf
  5. ‎#77adc9
  6. ‎#81b7d4
  7. ‎#8cc2de

نغمات

  1. ‎#6da3bf
  2. ‎#76a1b8
  3. ‎#7e9fb1
  4. ‎#859daa
  5. ‎#8b9aa4
  6. ‎#91989d
  7. ‎#969696

الصبغات والظلال

‎#6da3bf إلى الأبيض

  1. ‎#6da3bf
  2. ‎#87b2c9
  3. ‎#9fc1d4
  4. ‎#b7d0df
  5. ‎#cfe0e9
  6. ‎#e7eff4
  7. ‎#ffffff / #fff

‎#6da3bf إلى الأسو

  1. ‎#6da3bf
  2. ‎#5b869c
  3. ‎#496a7b
  4. ‎#384f5b
  5. ‎#28353d
  6. ‎#181e21
  7. ‎#000000 / #000

الدهانات

دهانات مطابقة دقيقة

دهانات مماثلة

  1. Natural Color System / NCS

    1. ★ S 2030-B
      ‎#6ca2c1
      ΔE = 1.204 / LRV ≈ 32.9%
    2. S 2030-B10G
      ‎#67a8bb
      ΔE = 4.951 / LRV ≈ 34.5%
  2. Dutch Boy

    1. ★ Summer Fun Blue
      ‎#69a3c3
      ΔE = 1.320 / LRV ≈ 33.1%
    2. Sense of Time
      ‎#80a1bd
      ΔE = 4.045 / LRV ≈ 33.8%
  3. Benjamin Moore

    1. ★ I've Got The Blues / 774
      ‎#6ba5bf
      ΔE = 1.385 / LRV ≈ 33.8%
    2. ★ Lafayette Blue / CW-610
      ‎#6da7c5
      ΔE = 1.521 / LRV ≈ 34.9%
  4. Beckers

    1. ★ Aqua 764 / S 1050-B40G
      ‎#73a6bf
      ΔE = 1.560 / LRV ≈ 34.7%
  5. Sikkens

    1. ★ S6.27.56
      ‎#6ea4c4
      ΔE = 1.611 / LRV ≈ 33.8%
    2. T4.23.56
      ‎#7ba1c4
      ΔE = 4.915 / LRV ≈ 33.7%
  6. New Look

    1. ★ Twiddle Dum / E22-10
      ‎#76a4c0
      ΔE = 1.632 / LRV ≈ 34.2%
    2. Charlies Train / E22-05
      ‎#6f95af
      ΔE = 5.218 / LRV ≈ 28.0%
  7. Taubmans

    1. ★ Seclusion / T12 42.E4
      ‎#73a7c4
      ΔE = 1.733 / LRV ≈ 35.3%
    2. Sapphire Glow / T12 40.E1
      ‎#69a7ca
      ΔE = 2.608 / LRV ≈ 34.9%
  8. Bristol

    1. ★ Seclusion / P113-C5
      ‎#73a7c4
      ΔE = 1.733 / LRV ≈ 35.3%
    2. Riverside Blue / P123-C5
      ‎#529bb8
      ΔE = 4.633 / LRV ≈ 28.7%
  9. Plascon

    1. ★ Adonis Blue B2-D2-2
      ‎#74a0b8
      ΔE = 1.786 / LRV ≈ 32.3%
    2. Baby Bird Blue B2-B2-1
      ‎#54accc
      ΔE = 4.824 / LRV ≈ 35.7%
  10. Sigma

    1. ★ Cool Blue / FS098
      ‎#6b9fb8
      ΔE = 1.798 / LRV ≈ 31.4%
    2. ★ Cool Blue / 5024
      ‎#6f9eb7
      ΔE = 1.977 / LRV ≈ 31.3%
  11. Diamond Vogel

    1. ★ Sea of Atlantis / 0653
      ‎#74a4c3
      ΔE = 2.080 / LRV ≈ 34.2%
    2. Key West Zenith / 0646
      ‎#7da2c2
      ΔE = 4.238 / LRV ≈ 34.1%
  12. Porter Paints

    1. ★ Serene Sea / 350-4
      ‎#77a6c3
      ΔE = 2.110 / LRV ≈ 35.1%
    2. Walden Pond / 450-4
      ‎#779bb6
      ΔE = 3.825 / LRV ≈ 30.7%
  13. Ford

    1. ★ Lakeland Blue
      ‎#5fa2c3
      ΔE = 2.111 / LRV ≈ 32.2%
    2. Aqua Blue Diamond Fire
      ‎#769db5
      ΔE = 2.823 / LRV ≈ 31.3%
  14. Glidden

    1. ★ Serene Sea / PPG1158-4
      ‎#78a7c3
      ΔE = 2.226 / LRV ≈ 35.6%
    2. Hidden Harbor Blue / 70BG 32/238
      ‎#649dbc
      ΔE = 2.522 / LRV ≈ 30.5%
  15. Evonik-Degussa

    1. ★ 1242T Blue Comfort
      ‎#73a5bb
      ΔE = 2.238 / LRV ≈ 34.1%
    2. 1224T Blue Edge
      ‎#73a4b8
      ΔE = 2.854 / LRV ≈ 33.7%
  16. Dunn-Edwards

    1. Lake Lucerne / 357
      ‎#689db7
      ΔE = 2.353 / LRV ≈ 30.5%
    2. Lake Winnipeg / 568
      ‎#80a1b0
      ΔE = 4.562 / LRV ≈ 33.2%
  17. Opaltone / OMS

    1. 5347
      ‎#6a9fb6
      ΔE = 2.460 / LRV ≈ 31.2%
    2. 6053
      ‎#59a2ce
      ΔE = 5.209 / LRV ≈ 32.4%
  18. Nippon Paint

    1. Shipside Blue / NP PB 1563 T
      ‎#68a9c5
      ΔE = 2.506 / LRV ≈ 35.3%
    2. Blue Music / NP PB 1553 T
      ‎#6aafce
      ΔE = 4.364 / LRV ≈ 38.2%
  19. KILZ

    1. Seaside Retreat / C772
      ‎#6d9cb6
      ΔE = 2.555 / LRV ≈ 30.4%
    2. Vintage Sapphire / C872
      ‎#56a3bf
      ΔE = 3.638 / LRV ≈ 31.9%
  20. Behr

    1. Blue Bell RAH-79
      ‎#709dba
      ΔE = 2.576 / LRV ≈ 31.1%
    2. Hawaiian Sky PPU14-07
      ‎#82a1be
      ΔE = 4.695 / LRV ≈ 34.0%
  21. Focoltone

    1. 2198
      ‎#6a9cb6
      ΔE = 2.578 / LRV ≈ 30.2%
    2. 1066
      ‎#6aaac9
      ΔE = 2.633 / LRV ≈ 36.0%
  22. Devoe Paint

    1. Starry Night / 10BB 32/262
      ‎#6c9dbc
      ΔE = 2.648 / LRV ≈ 30.9%
    2. Ticking Stripe / 30BB 33/211
      ‎#819db8
      ΔE = 4.996 / LRV ≈ 32.2%
  23. Volkswagen

    1. Aquamarine
      ‎#65a8c3
      ΔE = 2.663 / LRV ≈ 34.7%
    2. Florida Blue
      ‎#7fa3c4
      ΔE = 4.788 / LRV ≈ 34.7%
  24. Teknos

    1. GBI079
      ‎#7da3b9
      ΔE = 2.723 / LRV ≈ 34.1%
    2. GBI048
      ‎#869eb4
      ΔE = 5.193 / LRV ≈ 32.8%
  25. Scib Paints

    1. Thunder Bay / 7368
      ‎#7ba0b7
      ΔE = 2.724 / LRV ≈ 32.8%
  26. Berger

    1. Thunder Bay / 7368
      ‎#7ba0b7
      ΔE = 2.724 / LRV ≈ 32.8%
  27. Vista Paint

    1. Thunder Bay
      ‎#7ba0b7
      ΔE = 2.724 / LRV ≈ 32.8%
  28. Martha Stewart Living

    1. Delphinium C19
      ‎#79a6bb
      ΔE = 2.738 / LRV ≈ 34.9%
    2. Cornflower C20
      ‎#83abc0
      ΔE = 4.391 / LRV ≈ 37.8%
  29. TRUMATCH

    1. 31-d4
      ‎#70a2c4
      ΔE = 2.739 / LRV ≈ 33.3%
    2. 31-e5
      ‎#86a5bd
      ΔE = 4.312 / LRV ≈ 35.7%
  30. Sherwin-Williams

    1. Bluebird Feather - 9062
      ‎#6f9db3
      ΔE = 2.829 / LRV ≈ 30.7%
    2. Jacaranda - 6802
      ‎#5a9ec0
      ΔE = 3.199 / LRV ≈ 30.4%
  31. Olympic

    1. Serene Sea B53-3
      ‎#77a9c0
      ΔE = 2.875 / LRV ≈ 36.1%
    2. Freshwater C53-3
      ‎#7fa4ba
      ΔE = 2.992 / LRV ≈ 34.6%
  32. Peintures MF

    1. Abraham
      ‎#7ca6bb
      ΔE = 2.906 / LRV ≈ 35.1%
    2. Bleu minéral
      ‎#7fa3b6
      ΔE = 3.431 / LRV ≈ 34.1%
  33. Kelly-Moore

    1. Bird's Egg Blue / KM3142-2
      ‎#73a4c6
      ΔE = 2.958 / LRV ≈ 34.3%
    2. Piece of the Sky / KM3125-2
      ‎#7b99b4
      ΔE = 5.123 / LRV ≈ 30.3%
  34. California Paints

    1. DE 5850 - Wandering River
      ‎#73a4c6
      ΔE = 2.958 / LRV ≈ 34.3%
    2. DE 5787 - Pacific Palisade
      ‎#69a4b9
      ΔE = 3.326 / LRV ≈ 33.1%
  35. GM / General Motors

    1. Nassau Blue
      ‎#769fbd
      ΔE = 2.985 / LRV ≈ 32.3%
    2. Tropic Turquoise
      ‎#70a7bc
      ΔE = 3.156 / LRV ≈ 34.7%
  36. Caparol

    1. Iris 15
      ‎#68a8cc
      ΔE = 3.036 / LRV ≈ 35.3%
    2. Polar 4
      ‎#589cb4
      ΔE = 4.718 / LRV ≈ 29.1%
  37. Sto

    1. 35221
      ‎#7fa6c0
      ΔE = 3.090 / LRV ≈ 35.6%
    2. 35311
      ‎#6999af
      ΔE = 4.131 / LRV ≈ 28.9%
  38. ICI Paints

    1. Santa Maria Blue 70BG 36/220
      ‎#64a3ba
      ΔE = 3.099 / LRV ≈ 32.4%
    2. Bristol 10BB 37/234
      ‎#73a2c4
      ΔE = 3.141 / LRV ≈ 33.5%
  39. Coronado Paint

    1. 7368 - Thunder Bay
      ‎#779fb2
      ΔE = 3.245 / LRV ≈ 31.9%
    2. 7343 - Birds Egg Blue
      ‎#5b99ba
      ΔE = 4.322 / LRV ≈ 28.5%
  40. Games Workshop - Citadel

    1. Fenrisian Grey
      ‎#719bb7
      ΔE = 3.252 / LRV ≈ 30.4%
    2. Stormfang
      ‎#80a7c1
      ΔE = 3.328 / LRV ≈ 36.1%
  41. Mylands of London

    1. Light Blue
      ‎#7fa8be
      ΔE = 3.319 / LRV ≈ 36.2%
    2. Pastel Blue
      ‎#7e9fb2
      ΔE = 3.704 / LRV ≈ 32.4%
  42. Nerolac

    1. Garden Glory - 2431
      ‎#7aaac8
      ΔE = 3.360 / LRV ≈ 37.1%
    2. French Drapes - 4296
      ‎#52a8c2
      ΔE = 5.198 / LRV ≈ 33.7%
  43. Chrysler

    1. Medium Blue
      ‎#719fc1
      ΔE = 3.431 / LRV ≈ 32.2%
    2. Blue
      ‎#69abce
      ΔE = 3.482 / LRV ≈ 36.6%
  44. AMC

    1. Sierra Blue
      ‎#69abce
      ΔE = 3.482 / LRV ≈ 36.6%
  45. Toyo Ink

    1. CF10686
      ‎#7ba0b2
      ΔE = 3.546 / LRV ≈ 32.6%
    2. CF10421
      ‎#74acd2
      ΔE = 4.998 / LRV ≈ 37.9%
  46. Brillux

    1. 63.15.18
      ‎#6fa5ca
      ΔE = 3.548 / LRV ≈ 34.6%
    2. 66.15.18
      ‎#4ea4c3
      ΔE = 4.216 / LRV ≈ 32.1%
  47. Resene

    1. Shakespeare B67-062-229
      ‎#609ab8
      ΔE = 3.580 / LRV ≈ 29.1%
  48. Dulux

    1. 90BG 38/185
      ‎#80a9bf
      ΔE = 3.598 / LRV ≈ 36.7%
    2. 90BG 29/267
      ‎#579ab9
      ΔE = 4.227 / LRV ≈ 28.6%
  49. Man

    1. Guineablau / LH5K
      ‎#5f9ab8
      ΔE = 3.637 / LRV ≈ 29.0%
  50. Little Greene

    1. Blue Verditer
      ‎#659ab2
      ΔE = 3.734 / LRV ≈ 29.1%
    2. Beach Hut
      ‎#53a8d1
      ΔE = 4.690 / LRV ≈ 34.4%
  51. Disney

    1. 3C-30-3 Oh Bother Blue
      ‎#7ca5c5
      ΔE = 3.763 / LRV ≈ 35.2%
  52. Kansai Paint

    1. Thunder Blue
      ‎#82a3b6
      ΔE = 3.778 / LRV ≈ 34.3%
    2. Ravi Blue
      ‎#84aec6
      ΔE = 4.998 / LRV ≈ 39.3%
  53. Jedynka

    1. Pd 1101
      ‎#809fb5
      ΔE = 3.778 / LRV ≈ 32.7%
  54. Humbrol

    1. 128 Us Compass Grey
      ‎#82a5b8
      ΔE = 3.779 / LRV ≈ 35.1%
    2. 128 Us Compass Grey
      ‎#81a6b6
      ΔE = 4.459 / LRV ≈ 35.3%
  55. Pratt & Lambert

    1. Celestrial 26-10
      ‎#6ea5cb
      ΔE = 3.817 / LRV ≈ 34.5%
    2. Cornflower 24-11
      ‎#589ab6
      ΔE = 4.330 / LRV ≈ 28.6%
  56. Levis

    1. Atl Denim C1
      ‎#83a8c1
      ΔE = 3.859 / LRV ≈ 36.7%
    2. Mild Indigo
      ‎#7e9db2
      ΔE = 3.943 / LRV ≈ 31.8%
  57. Clark+Kensington

    1. Rhythm and Blues / 36C-5
      ‎#679cc0
      ΔE = 3.979 / LRV ≈ 30.5%
    2. Azure Sky / 37C-5
      ‎#88a9c0
      ΔE = 4.724 / LRV ≈ 37.4%
  58. Pantone / PMS

    1. 549 CP
      ‎#76a5b6
      ΔE = 3.995 / LRV ≈ 34.1%
    2. 15-4421 TCX
      ‎#5cacce
      ΔE = 4.125 / LRV ≈ 36.2%
  59. Asian Paints

    1. Calming Blue / 9200
      ‎#799cb9
      ΔE = 4.146 / LRV ≈ 31.3%
    2. Tranquil Blue / 9215
      ‎#49a0c8
      ΔE = 4.937 / LRV ≈ 30.7%
  60. Cloverdale Paint

    1. Bonaventure / 7359
      ‎#50a7c7
      ΔE = 4.187 / LRV ≈ 33.5%
    2. Thunder Bay / 7368
      ‎#82a9ba
      ΔE = 4.651 / LRV ≈ 36.7%
  61. Colortrend

    1. 0646
      ‎#7da2c2
      ΔE = 4.238 / LRV ≈ 34.1%
    2. Meetinghouse Blue
      ‎#769cab
      ΔE = 4.913 / LRV ≈ 30.6%
  62. CIL

    1. Starry Night
      ‎#6b9dc2
      ΔE = 4.280 / LRV ≈ 31.1%
    2. Spirited Flight
      ‎#5b98ba
      ΔE = 4.734 / LRV ≈ 28.2%
  63. Valspar Paint

    1. Rushing Rapids
      ‎#5c99b4
      ΔE = 4.314 / LRV ≈ 28.4%
    2. Bluestone
      ‎#739abb
      ΔE = 4.827 / LRV ≈ 30.3%
  64. PPG Pittsburgh Paints

    1. Americana / PPG1152-4
      ‎#7f9daf
      ΔE = 4.341 / LRV ≈ 31.7%
    2. Society Street Chs-34
      ‎#7a98ac
      ΔE = 4.992 / LRV ≈ 29.6%
  65. RAL

    1. RAL 670-M
      ‎#74a7b8
      ΔE = 4.396 / LRV ≈ 34.8%
    2. RAL 640-1
      ‎#49a0c5
      ΔE = 4.607 / LRV ≈ 30.6%
  66. Earthborn

    1. Polka Dot
      ‎#739dad
      ΔE = 4.544 / LRV ≈ 30.8%
  67. Johnstone's Paint

    1. Teal Topaz
      ‎#5eaece
      ΔE = 4.603 / LRV ≈ 37.1%
  68. Earthpaint

    1. 3-34-4 Lapis
      ‎#73a8b9
      ΔE = 4.643 / LRV ≈ 35.2%
    2. 3-36-4 Blue Emotion
      ‎#7899b6
      ΔE = 4.985 / LRV ≈ 30.2%
  69. Brighto Paints

    1. 3-35-4 Crushed Blue Stone
      ‎#81aec7
      ΔE = 4.696 / LRV ≈ 39.1%
    2. 2055 Ocean Dip
      ‎#4ca9c7
      ΔE = 5.206 / LRV ≈ 34.0%
  70. British Standard

    1. BS 2660 BS 8-088 - Wedgewood blue
      ‎#83a3b2
      ΔE = 4.701 / LRV ≈ 34.2%
  71. Tollens

    1. T2012-5
      ‎#6e97b5
      ΔE = 4.781 / LRV ≈ 28.8%
    2. Mer Baltique | EE113
      ‎#88a1b2
      ΔE = 5.060 / LRV ≈ 33.9%
  72. Model Master

    1. Model Master 28128
      ‎#67aec7
      ΔE = 4.784 / LRV ≈ 37.3%
  73. Crown Diamond

    1. 7329-52 Innocent Blue
      ‎#6eaad2
      ΔE = 4.833 / LRV ≈ 36.7%
    2. 7326-52 Satin Gown
      ‎#7f9ab2
      ΔE = 5.105 / LRV ≈ 30.8%
  74. Designers Guild

    1. TG Blue
      ‎#7ba9b9
      ΔE = 4.857 / LRV ≈ 36.1%
  75. Rodda Paint

    1. Meetinghouse Blue H46
      ‎#769cab
      ΔE = 4.913 / LRV ≈ 30.6%
  76. Bentley

    1. Glacier Blue / LO5P
      ‎#619fb2
      ΔE = 4.932 / LRV ≈ 30.6%
  77. Laura Ashley

    1. 1304 Sky Blue 4
      ‎#52a8c3
      ΔE = 4.958 / LRV ≈ 33.7%
    2. 1310 Powder Blue 4
      ‎#799dab
      ΔE = 5.071 / LRV ≈ 31.1%
  78. Duron

    1. Stratford Blue
      ‎#509ab7
      ΔE = 5.039 / LRV ≈ 28.2%
  79. Audi

    1. Bahia Blue / L50A
      ‎#7d9baa
      ΔE = 5.159 / LRV ≈ 30.7%
  80. General Paint

    1. Lyric / CL 2245D
      ‎#5ba6d2
      ΔE = 5.159 / LRV ≈ 34.1%
    2. Aromatherapy / CL 2334D
      ‎#7599b9
      ΔE = 5.177 / LRV ≈ 30.1%
  81. Kenworth USA

    1. Bafin Blue / N0433
      ‎#65a1b2
      ΔE = 5.221 / LRV ≈ 31.5%
  82. Freightliner

    1. Baffin Blue / N0433
      ‎#65a1b2
      ΔE = 5.221 / LRV ≈ 31.5%

محاكاة عمى اللون

Monochromacy

Dichromacy

رؤية ثلاثية الألوان

‎#6da3bf HTML / CSS أمثلة على الرمز

‎#6da3bf الصدارة

أسبق من الأجل.

<p style="color: #6da3bf">…</p>

‎#6da3bf الخلفية

أظلم من الليل.

<p style="background-color: #6da3bf">…</p>

‎#6da3bf ظل النص

أكل عليه الدهر وشرب.

<p style="text-shadow: 0.1em 0.1em 0.15em #6da3bf">…</p>

الرسوم البيانية للون

تحويلات مساحة اللون

عشري
7185343
الثنائية
01101101, 10100011, 10111111
عشري
#6da3bf
LRV
≈ 33.2%
أقرب لون ست عشري قصير
#6ac ΔE = 2.921
RGB
rgb(109, 163, 191)
RGBA
rgba(109, 163, 191, 1.0)
rg اللونية
r: 0.235, g: 0.352, b: 0.413
RYB
أحمر: 42.745%, أصفر: 55.513%, أزرق: 74.902%
Android / android.graphics.Color
-9591873 / 0xff6da3bf
HSL
hsl(200, 39%, 59%)
HSLA
hsla(200, 39%, 59%, 1.0)
HSV / HSB
صبغة: 200° (200.488), تشبع: 43% (0.429), قيمة: 75% (0.749)
HSP
صبغة: 200.488, تشبع: 42.932%, السطوع المدركة: 59.869%
HSLuv (HUSL)
H: 228.609, S: 57.383, L: 64.327
Cubehelix
H: -165.479, S: 0.481, L: 0.588
TSL
T: -1.921, S: 0.134, L: 0.588
CMYK
سيان: 43% (0.429), ماجنتي: 15% (0.147), أصفر: 0% (0.000), أسود: 25% (0.251)
CMY
سيان: 57% (0.573), ماجنتي: 36% (0.361), أصفر: 25% (0.251)
XYZ
X: 28.805, Y: 33.205, Z: 54.172
xyY
x: 0.248, y: 0.286, Y: 33.205
CIELab
L: 64.327, a: -10.387, b: -19.983
CIELuv
L: 64.327, u: -25.682, v: -29.140
CIELCH / LCHab
L: 64.327, C: 22.521, H: 242.535
CIELUV / LCHuv
L: 64.327, C: 38.842, H: 228.609
Hunter-Lab
L: 57.624, a: -11.615, b: -15.401
CIECAM02
J: 53.716, C: 33.827, h: 229.960, Q: 144.399, M: 29.581, s: 45.261, H: 291.241
OSA-UCS
خفة: -10.160, أصفر: -3.382, أخضر: 2.777
LMS
L: 26.576, M: 36.429, S: 53.810
YCbCr
Y: 144.883, Cb: 148.284, Cr: 102.306
YCoCg
Y: 156.500, Cg: 6.500, Co: 6.750
YDbDr
Y: 150.046, Db: 61.624, Dr: 78.058
YPbPr
Y: 153.514, Pb: 20.210, Pr: -28.288
xvYCC
Y: 147.841, Cb: 145.753, Cr: 103.151
YIQ
Y: 150.046, I: -41.164, Q: -2.707
YUV
Y: 150.046, U: 20.155, V: -36.010
نظام الألوان مونسل
10B 6/6 ΔE = 1.822
لون العلامة التجارية
Foursquare ΔE = 5.846

ألوان عشوائية

أحمر

أخضر

أزرق