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#428AB4

#428ab4 ≈ Air Force Blue

  • azure
  • Lightness: medium
  • Saturation: moderate
  • Cool
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#428ab4 is a color from the azure family, with medium lightness and moderate saturation. In the RGB model it is made of 25.88% red, 54.12% green and 70.59% blue; printed in CMYK it uses 63.33% cyan, 23.33% magenta, 0% yellow and 29.41% black. Its hue angle is 202.11°, with 46.34% saturation and 48.24% 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 5.53:1 (WCAG AA). The closest named color is Air Force Blue (#5d8aa8), ΔE 3.87.

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 luminance0.2263

Complementary

  1. #428ab4
  2. #b46c42

Split complementary

  1. #428ab4
  2. #b44251
  3. #b4a542

Analogous

  1. #42b4a5
  2. #428ab4
  3. #4251b4

Triadic

  1. #428ab4
  2. #b4428a
  3. #8ab442

Tetradic

  1. #428ab4
  2. #6c42b4
  3. #b46c42
  4. #8ab442

Square

  1. #428ab4
  2. #a542b4
  3. #b46c42
  4. #51b442

Monochromatic

  1. #193444
  2. #2d5f7c
  3. #428ab4
  4. #76adcd
  5. #aecee1

Shades

#428ab4 mixed progressively with black.

  1. #428ab4
  2. #3b7ca2
  3. #356e90
  4. #2e617e
  5. #28536c
  6. #21455a
  7. #1a3748
  8. #142936
  9. #0d1c24
  10. #070e12
  11. #000000

Tints

#428ab4 mixed progressively with white.

  1. #428ab4
  2. #5596bc
  3. #68a1c3
  4. #7badcb
  5. #8eb9d2
  6. #a1c5da
  7. #b3d0e1
  8. #c6dce9
  9. #d9e8f0
  10. #ecf3f8
  11. #ffffff

Tones

#428ab4 mixed progressively with gray.

  1. #428ab4
  2. #4889af
  3. #4e88aa
  4. #5587a4
  5. #5b869f
  6. #61859a
  7. #678495
  8. #6d8390
  9. #74828a
  10. #7a8185
  11. #808080

Readable text 3.8:1 AA ✕ AA Large ✓ AAA ✕ AAA Large ✕
Readable text 5.53:1 AA ✓ AA Large ✓ AAA ✕ AAA Large ✓

Achromatopsia #838383 ≈ 0.003% of males
Achromatomaly #6f8699 ≈ 0.001% of males
Protanopia #7689b6 ≈ 1.01% of males
Deuteranopia #677eb3 ≈ 1.27% of males
Tritanopia #009598 ≈ 0.0001% of males
Protanomaly #658ab5 ≈ 1.08% of males
Deuteranomaly #5a83b4 ≈ 4.63% of males
Tritanomaly #0791a4 ≈ 0.0002% of males
Simulate on your own image

Text in this color

Background in this color

Border in this color

Text color
.text-428ab4 {
  color: #428ab4;
}
Background
.bg-428ab4 {
  background-color: #428ab4;
  color: #000000;
}
Border
.border-428ab4 {
  border: 2px solid #428ab4;
}
CSS variables
:root {
  --color-primary: #428ab4;
  --color-primary-rgb: 66 138 180;
  --color-primary-hsl: 202 46% 48%;
}
Gradient
.gradient-428ab4 {
  background: linear-gradient(135deg, #428ab4, #4251b4);
}
Colored shadow
.shadow-428ab4 {
  box-shadow: 0 8px 24px rgb(66 138 180 / 0.35);
}

#5d8aa8 Air Force Blue ΔE 3.87 #4682b4 Steel Blue ΔE 4.23 #007ba7 Cerulean ΔE 6.78 #417dc1 Tufts Blue ΔE 7.33 #318ce7 Bleu de France ΔE 7.38 #0095b6 Bondi Blue ΔE 7.42 #56a0d3 Carolina Blue ΔE 7.77 #bd754b Inverted #838383 Grayscale 

Air Force Blue
#428ab4  rgb(66, 138, 180)  hsl(202, 46%, 48%)  Air Force Blue
#b46c42  rgb(180, 108, 66)  hsl(22, 46%, 48%)  Copper
#b4428a  rgb(180, 66, 138)  hsl(322, 46%, 48%)  Mulberry
#8ab442  rgb(138, 180, 66)  hsl(82, 46%, 48%)  Apple Green