ColorTool
Log in
#618BB1

#618bb1 ≈ Air Force Blue

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

#618bb1 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 69.41% blue; printed in CMYK it uses 45.2% cyan, 21.47% magenta, 0% yellow and 30.59% black. Its hue angle is 208.5°, with 33.9% saturation and 53.73% 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 5.84:1 (WCAG AA). The closest named color is Air Force Blue (#5d8aa8), ΔE 3.14.

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 luminance0.2418

Complementary

  1. #618bb1
  2. #b18761

Split complementary

  1. #618bb1
  2. #b16163
  3. #b1af61

Analogous

  1. #61b1af
  2. #618bb1
  3. #6163b1

Triadic

  1. #618bb1
  2. #b1618b
  3. #8bb161

Tetradic

  1. #618bb1
  2. #8761b1
  3. #b18761
  4. #8bb161

Square

  1. #618bb1
  2. #af61b1
  3. #b18761
  4. #63b161

Monochromatic

  1. #283e51
  2. #416484
  3. #618bb1
  4. #94b1ca
  5. #c7d6e4

Shades

#618bb1 mixed progressively with black.

  1. #618bb1
  2. #577d9f
  3. #4e6f8e
  4. #44617c
  5. #3a536a
  6. #314659
  7. #273847
  8. #1d2a35
  9. #131c23
  10. #0a0e12
  11. #000000

Tints

#618bb1 mixed progressively with white.

  1. #618bb1
  2. #7197b9
  3. #81a2c1
  4. #90aec8
  5. #a0b9d0
  6. #b0c5d8
  7. #c0d1e0
  8. #d0dce8
  9. #dfe8ef
  10. #eff3f7
  11. #ffffff

Tones

#618bb1 mixed progressively with gray.

  1. #618bb1
  2. #648aac
  3. #6789a7
  4. #6a88a2
  5. #6d879d
  6. #718699
  7. #748494
  8. #77838f
  9. #7a828a
  10. #7d8185
  11. #808080

Readable text 3.6:1 AA ✕ AA Large ✓ AAA ✕ AAA Large ✕
Readable text 5.84:1 AA ✓ AA Large ✓ AAA ✕ AAA Large ✓

Achromatopsia #878787 ≈ 0.003% of males
Achromatomaly #79899a ≈ 0.001% of males
Protanopia #7c8cb3 ≈ 1.01% of males
Deuteranopia #7183b0 ≈ 1.27% of males
Tritanopia #409498 ≈ 0.0001% of males
Protanomaly #728bb2 ≈ 1.08% of males
Deuteranomaly #6b86b1 ≈ 4.63% of males
Tritanomaly #4f90a2 ≈ 0.0002% of males
Simulate on your own image

Text in this color

Background in this color

Border in this color

Text color
.text-618bb1 {
  color: #618bb1;
}
Background
.bg-618bb1 {
  background-color: #618bb1;
  color: #000000;
}
Border
.border-618bb1 {
  border: 2px solid #618bb1;
}
CSS variables
:root {
  --color-primary: #618bb1;
  --color-primary-rgb: 97 139 177;
  --color-primary-hsl: 209 34% 54%;
}
Gradient
.gradient-618bb1 {
  background: linear-gradient(135deg, #618bb1, #6163b1);
}
Colored shadow
.shadow-618bb1 {
  box-shadow: 0 8px 24px rgb(97 139 177 / 0.35);
}

#5d8aa8 Air Force Blue ΔE 3.14 #4682b4 Steel Blue ΔE 4.67 #6082b6 Glaucous ΔE 4.68 #5b92e5 United Nations Blue ΔE 6.31 #417dc1 Tufts Blue ΔE 6.37 #318ce7 Bleu de France ΔE 6.57 #778899 Light Slate Gray ΔE 7.36 #9e744e Inverted #878787 Grayscale 

Air Force Blue
#618bb1  rgb(97, 139, 177)  hsl(209, 34%, 54%)  Air Force Blue
#b18761  rgb(177, 135, 97)  hsl(29, 34%, 54%)  Cafe au Lait
#b1618b  rgb(177, 97, 139)  hsl(329, 34%, 54%)  Mulberry
#8bb161  rgb(139, 177, 97)  hsl(89, 34%, 54%)  Olivine