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#4591BB

#4591bb ≈ Air Force Blue

  • azure
  • Lightness: medium
  • Saturation: moderate
  • Cool
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#4591bb is a color from the azure family, with medium lightness and moderate saturation. In the RGB model it is made of 27.06% red, 56.86% green and 73.33% blue; printed in CMYK it uses 63.1% cyan, 22.46% magenta, 0% yellow and 26.67% black. Its hue angle is 201.36°, with 46.46% saturation and 50.2% lightness in HSL. It is a cool color, often associated with openness, freedom and calm. Designers typically use it for technology products, finance and banking and brand accents. Black text on this color reaches a contrast ratio of 6.02:1 (WCAG AA). The closest named color is Air Force Blue (#5d8aa8), ΔE 4.51.

Description generated from the measured properties of this color.

HEX
RGB
RGB percent
CMY
CMYK
HSL
HSV / HSB
Web safe#3399cc
CIE-LAB
XYZ
xyY
CIE-LCH
CIE-LUV
Hunter-Lab
OKLab
Binary
Decimal
Relative luminance0.251

Complementary

  1. #4591bb
  2. #bb6f45

Split complementary

  1. #4591bb
  2. #bb4556
  3. #bbaa45

Analogous

  1. #45bbaa
  2. #4591bb
  3. #4556bb

Triadic

  1. #4591bb
  2. #bb4591
  3. #91bb45

Tetradic

  1. #4591bb
  2. #6f45bb
  3. #bb6f45
  4. #91bb45

Square

  1. #4591bb
  2. #aa45bb
  3. #bb6f45
  4. #56bb45

Monochromatic

  1. #1c3a4b
  2. #306683
  3. #4591bb
  4. #7db2cf
  5. #b5d3e4

Shades

#4591bb mixed progressively with black.

  1. #4591bb
  2. #3e83a8
  3. #377496
  4. #306683
  5. #295770
  6. #23495e
  7. #1c3a4b
  8. #152c38
  9. #0e1d25
  10. #070f13
  11. #000000

Tints

#4591bb mixed progressively with white.

  1. #4591bb
  2. #589cc2
  3. #6aa7c9
  4. #7db2cf
  5. #8fbdd6
  6. #a2c8dd
  7. #b5d3e4
  8. #c7deeb
  9. #dae9f1
  10. #ecf4f8
  11. #ffffff

Tones

#4591bb mixed progressively with gray.

  1. #4591bb
  2. #4b8fb5
  3. #518eaf
  4. #578ca9
  5. #5d8aa3
  6. #63899e
  7. #688798
  8. #6e8592
  9. #74838c
  10. #7a8286
  11. #808080

Readable text 3.49:1 AA ✕ AA Large ✓ AAA ✕ AAA Large ✕
Readable text 6.02:1 AA ✓ AA Large ✓ AAA ✕ AAA Large ✓

Achromatopsia #898989 ≈ 0.003% of males
Achromatomaly #748ca0 ≈ 0.001% of males
Protanopia #7d90bd ≈ 1.01% of males
Deuteranopia #6d84ba ≈ 1.27% of males
Tritanopia #009c9f ≈ 0.0001% of males
Protanomaly #6b90bc ≈ 1.08% of males
Deuteranomaly #5f89bb ≈ 4.63% of males
Tritanomaly #0898ab ≈ 0.0002% of males
Simulate on your own image

Text in this color

Background in this color

Border in this color

Text color
.text-4591bb {
  color: #4591bb;
}
Background
.bg-4591bb {
  background-color: #4591bb;
  color: #000000;
}
Border
.border-4591bb {
  border: 2px solid #4591bb;
}
CSS variables
:root {
  --color-primary: #4591bb;
  --color-primary-rgb: 69 145 187;
  --color-primary-hsl: 201 46% 50%;
}
Gradient
.gradient-4591bb {
  background: linear-gradient(135deg, #4591bb, #4556bb);
}
Colored shadow
.shadow-4591bb {
  box-shadow: 0 8px 24px rgb(69 145 187 / 0.35);
}

#5d8aa8 Air Force Blue ΔE 4.51 #56a0d3 Carolina Blue ΔE 5.68 #4682b4 Steel Blue ΔE 6.27 #0095b6 Bondi Blue ΔE 6.42 #318ce7 Bleu de France ΔE 7.69 #71a6d2 Iceberg ΔE 8.43 #007ba7 Cerulean ΔE 8.91 #ba6e44 Inverted #898989 Grayscale 

Air Force Blue
#4591bb  rgb(69, 145, 187)  hsl(201, 46%, 50%)  Air Force Blue
#bb6f45  rgb(187, 111, 69)  hsl(21, 46%, 50%)  Copper
#bb4591  rgb(187, 69, 145)  hsl(321, 46%, 50%)  Mulberry
#91bb45  rgb(145, 187, 69)  hsl(81, 46%, 50%)  Apple Green