ColorTool
Log in
#618BB0

#618bb0 ≈ Air Force Blue

  • azure
  • Lightness: medium
  • Saturation: moderate
  • Cool
Check contrast Explore in graph Random color

#618bb0 is a color from the azure family, with medium lightness and moderate saturation. In the RGB model it is made of 38.04% red, 54.51% green and 69.02% blue; printed in CMYK it uses 44.89% cyan, 21.02% magenta, 0% yellow and 30.98% black. Its hue angle is 208.1°, with 33.33% saturation and 53.53% 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 5.83:1 (WCAG AA). The closest named color is Air Force Blue (#5d8aa8), ΔE 2.86.

Description generated from the measured properties of this color.

HEX
RGB
RGB percent
CMY
CMYK
HSL
HSV / HSB
Web safe#669999
CIE-LAB
XYZ
xyY
CIE-LCH
CIE-LUV
Hunter-Lab
OKLab
Binary
Decimal
Relative luminance0.2414

Complementary

  1. #618bb0
  2. #b08661

Split complementary

  1. #618bb0
  2. #b06164
  3. #b0ad61

Analogous

  1. #61b0ad
  2. #618bb0
  3. #6164b0

Triadic

  1. #618bb0
  2. #b0618b
  3. #8bb061

Tetradic

  1. #618bb0
  2. #8661b0
  3. #b08661
  4. #8bb061

Square

  1. #618bb0
  2. #ad61b0
  3. #b08661
  4. #64b061

Monochromatic

  1. #283d50
  2. #426483
  3. #618bb0
  4. #94b0c9
  5. #c7d6e3

Shades

#618bb0 mixed progressively with black.

  1. #618bb0
  2. #577d9e
  3. #4e6f8d
  4. #44617b
  5. #3a536a
  6. #314658
  7. #273846
  8. #1d2a35
  9. #131c23
  10. #0a0e12
  11. #000000

Tints

#618bb0 mixed progressively with white.

  1. #618bb0
  2. #7197b8
  3. #81a2c0
  4. #90aec8
  5. #a0b9d0
  6. #b0c5d8
  7. #c0d1df
  8. #d0dce7
  9. #dfe8ef
  10. #eff3f7
  11. #ffffff

Tones

#618bb0 mixed progressively with gray.

  1. #618bb0
  2. #648aab
  3. #6789a6
  4. #6a88a2
  5. #6d879d
  6. #718698
  7. #748493
  8. #77838e
  9. #7a828a
  10. #7d8185
  11. #808080

Readable text 3.6:1 AA ✕ AA Large ✓ AAA ✕ AAA Large ✕
Readable text 5.83:1 AA ✓ AA Large ✓ AAA ✕ AAA Large ✓

Achromatopsia #878787 ≈ 0.003% of males
Achromatomaly #798899 ≈ 0.001% of males
Protanopia #7c8bb2 ≈ 1.01% of males
Deuteranopia #7283af ≈ 1.27% of males
Tritanopia #419497 ≈ 0.0001% of males
Protanomaly #728bb1 ≈ 1.08% of males
Deuteranomaly #6b86b0 ≈ 4.63% of males
Tritanomaly #5090a2 ≈ 0.0002% of males
Simulate on your own image

Text in this color

Background in this color

Border in this color

Text color
.text-618bb0 {
  color: #618bb0;
}
Background
.bg-618bb0 {
  background-color: #618bb0;
  color: #000000;
}
Border
.border-618bb0 {
  border: 2px solid #618bb0;
}
CSS variables
:root {
  --color-primary: #618bb0;
  --color-primary-rgb: 97 139 176;
  --color-primary-hsl: 208 33% 54%;
}
Gradient
.gradient-618bb0 {
  background: linear-gradient(135deg, #618bb0, #6164b0);
}
Colored shadow
.shadow-618bb0 {
  box-shadow: 0 8px 24px rgb(97 139 176 / 0.35);
}

#5d8aa8 Air Force Blue ΔE 2.86 #4682b4 Steel Blue ΔE 4.71 #6082b6 Glaucous ΔE 4.89 #417dc1 Tufts Blue ΔE 6.49 #5b92e5 United Nations Blue ΔE 6.50 #318ce7 Bleu de France ΔE 6.72 #778899 Light Slate Gray ΔE 7.21 #9e744f Inverted #878787 Grayscale 

Air Force Blue
#618bb0  rgb(97, 139, 176)  hsl(208, 33%, 54%)  Air Force Blue
#b08661  rgb(176, 134, 97)  hsl(28, 33%, 54%)  Cafe au Lait
#b0618b  rgb(176, 97, 139)  hsl(328, 33%, 54%)  Mulberry
#8bb061  rgb(139, 176, 97)  hsl(88, 33%, 54%)  Olivine