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#428BB5

#428bb5 ≈ Air Force Blue

  • azure
  • Lightness: medium
  • Saturation: moderate
  • Cool
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#428bb5 is a color from the azure family, with medium lightness and moderate saturation. In the RGB model it is made of 25.88% red, 54.51% green and 70.98% blue; printed in CMYK it uses 63.54% cyan, 23.2% magenta, 0% yellow and 29.02% black. Its hue angle is 201.91°, with 46.56% saturation and 48.43% 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 5.59:1 (WCAG AA). The closest named color is Air Force Blue (#5d8aa8), ΔE 3.91.

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 luminance0.2296

Complementary

  1. #428bb5
  2. #b56c42

Split complementary

  1. #428bb5
  2. #b54252
  3. #b5a542

Analogous

  1. #42b5a5
  2. #428bb5
  3. #4252b5

Triadic

  1. #428bb5
  2. #b5428b
  3. #8bb542

Tetradic

  1. #428bb5
  2. #6c42b5
  3. #b56c42
  4. #8bb542

Square

  1. #428bb5
  2. #a542b5
  3. #b56c42
  4. #52b542

Monochromatic

  1. #193545
  2. #2e607d
  3. #428bb5
  4. #76adcd
  5. #aecfe2

Shades

#428bb5 mixed progressively with black.

  1. #428bb5
  2. #3b7da3
  3. #356f91
  4. #2e617f
  5. #28536d
  6. #21465b
  7. #1a3848
  8. #142a36
  9. #0d1c24
  10. #070e12
  11. #000000

Tints

#428bb5 mixed progressively with white.

  1. #428bb5
  2. #5597bc
  3. #68a2c4
  4. #7baecb
  5. #8eb9d3
  6. #a1c5da
  7. #b3d1e1
  8. #c6dce9
  9. #d9e8f0
  10. #ecf3f8
  11. #ffffff

Tones

#428bb5 mixed progressively with gray.

  1. #428bb5
  2. #488ab0
  3. #4e89aa
  4. #5588a5
  5. #5b87a0
  6. #61869b
  7. #678495
  8. #6d8390
  9. #74828b
  10. #7a8185
  11. #808080

Readable text 3.76:1 AA ✕ AA Large ✓ AAA ✕ AAA Large ✕
Readable text 5.59:1 AA ✓ AA Large ✓ AAA ✕ AAA Large ✓

Achromatopsia #848484 ≈ 0.003% of males
Achromatomaly #6f879a ≈ 0.001% of males
Protanopia #778ab7 ≈ 1.01% of males
Deuteranopia #677fb4 ≈ 1.27% of males
Tritanopia #009699 ≈ 0.0001% of males
Protanomaly #668bb6 ≈ 1.08% of males
Deuteranomaly #5b84b5 ≈ 4.63% of males
Tritanomaly #0592a5 ≈ 0.0002% of males
Simulate on your own image

Text in this color

Background in this color

Border in this color

Text color
.text-428bb5 {
  color: #428bb5;
}
Background
.bg-428bb5 {
  background-color: #428bb5;
  color: #000000;
}
Border
.border-428bb5 {
  border: 2px solid #428bb5;
}
CSS variables
:root {
  --color-primary: #428bb5;
  --color-primary-rgb: 66 139 181;
  --color-primary-hsl: 202 47% 48%;
}
Gradient
.gradient-428bb5 {
  background: linear-gradient(135deg, #428bb5, #4252b5);
}
Colored shadow
.shadow-428bb5 {
  box-shadow: 0 8px 24px rgb(66 139 181 / 0.35);
}

#5d8aa8 Air Force Blue ΔE 3.91 #4682b4 Steel Blue ΔE 4.54 #007ba7 Cerulean ΔE 7.05 #0095b6 Bondi Blue ΔE 7.19 #318ce7 Bleu de France ΔE 7.42 #56a0d3 Carolina Blue ΔE 7.47 #417dc1 Tufts Blue ΔE 7.63 #bd744a Inverted #848484 Grayscale 

Air Force Blue
#428bb5  rgb(66, 139, 181)  hsl(202, 47%, 48%)  Air Force Blue
#b56c42  rgb(181, 108, 66)  hsl(22, 47%, 48%)  Copper
#b5428b  rgb(181, 66, 139)  hsl(322, 47%, 48%)  Mulberry
#8bb542  rgb(139, 181, 66)  hsl(82, 47%, 48%)  Apple Green