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#428EB3

#428eb3 ≈ Air Force Blue

  • azure
  • Lightness: medium
  • Saturation: moderate
  • Cool
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#428eb3 is a color from the azure family, with medium lightness and moderate saturation. In the RGB model it is made of 25.88% red, 55.69% green and 70.2% blue; printed in CMYK it uses 63.13% cyan, 20.67% magenta, 0% yellow and 29.8% black. Its hue angle is 199.65°, with 46.12% saturation and 48.04% 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 5.75:1 (WCAG AA). The closest named color is Air Force Blue (#5d8aa8), ΔE 4.16.

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 luminance0.2376

Complementary

  1. #428eb3
  2. #b36742

Split complementary

  1. #428eb3
  2. #b34255
  3. #b3a042

Analogous

  1. #42b3a0
  2. #428eb3
  3. #4255b3

Triadic

  1. #428eb3
  2. #b3428e
  3. #8eb342

Tetradic

  1. #428eb3
  2. #6742b3
  3. #b36742
  4. #8eb342

Square

  1. #428eb3
  2. #a042b3
  3. #b36742
  4. #55b342

Monochromatic

  1. #193543
  2. #2d627b
  3. #428eb3
  4. #75b0cc
  5. #add0e1

Shades

#428eb3 mixed progressively with black.

  1. #428eb3
  2. #3b80a1
  3. #35728f
  4. #2e637d
  5. #28556b
  6. #21475a
  7. #1a3948
  8. #142b36
  9. #0d1c24
  10. #070e12
  11. #000000

Tints

#428eb3 mixed progressively with white.

  1. #428eb3
  2. #5599bb
  3. #68a5c2
  4. #7bb0ca
  5. #8ebbd1
  6. #a1c7d9
  7. #b3d2e1
  8. #c6dde8
  9. #d9e8f0
  10. #ecf4f7
  11. #ffffff

Tones

#428eb3 mixed progressively with gray.

  1. #428eb3
  2. #488dae
  3. #4e8ba9
  4. #558aa4
  5. #5b889f
  6. #61879a
  7. #678694
  8. #6d848f
  9. #74838a
  10. #7a8185
  11. #808080

Readable text 3.65:1 AA ✕ AA Large ✓ AAA ✕ AAA Large ✕
Readable text 5.75:1 AA ✓ AA Large ✓ AAA ✕ AAA Large ✓

Achromatopsia #868686 ≈ 0.003% of males
Achromatomaly #71899a ≈ 0.001% of males
Protanopia #7c8cb5 ≈ 1.01% of males
Deuteranopia #6c81b2 ≈ 1.27% of males
Tritanopia #00989a ≈ 0.0001% of males
Protanomaly #698db4 ≈ 1.08% of males
Deuteranomaly #5e86b3 ≈ 4.63% of males
Tritanomaly #0794a5 ≈ 0.0002% of males
Simulate on your own image

Text in this color

Background in this color

Border in this color

Text color
.text-428eb3 {
  color: #428eb3;
}
Background
.bg-428eb3 {
  background-color: #428eb3;
  color: #000000;
}
Border
.border-428eb3 {
  border: 2px solid #428eb3;
}
CSS variables
:root {
  --color-primary: #428eb3;
  --color-primary-rgb: 66 142 179;
  --color-primary-hsl: 200 46% 48%;
}
Gradient
.gradient-428eb3 {
  background: linear-gradient(135deg, #428eb3, #4255b3);
}
Colored shadow
.shadow-428eb3 {
  box-shadow: 0 8px 24px rgb(66 142 179 / 0.35);
}

#5d8aa8 Air Force Blue ΔE 4.16 #0095b6 Bondi Blue ΔE 5.32 #4682b4 Steel Blue ΔE 6.48 #56a0d3 Carolina Blue ΔE 7.42 #007ba7 Cerulean ΔE 7.80 #318ce7 Bleu de France ΔE 9.31 #417dc1 Tufts Blue ΔE 9.69 #bd714c Inverted #868686 Grayscale 

Air Force Blue
#428eb3  rgb(66, 142, 179)  hsl(200, 46%, 48%)  Air Force Blue
#b36742  rgb(179, 103, 66)  hsl(20, 46%, 48%)  Sienna
#b3428e  rgb(179, 66, 142)  hsl(320, 46%, 48%)  Medium Violet Red
#8eb342  rgb(142, 179, 66)  hsl(80, 46%, 48%)  Apple Green