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#183E4E

#183e4e ≈ Charcoal

  • azure
  • Lightness: low
  • Saturation: muted
  • Cool
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#183e4e is a color from the azure family, with low lightness and muted saturation. In the RGB model it is made of 9.41% red, 24.31% green and 30.59% blue; printed in CMYK it uses 69.23% cyan, 20.51% magenta, 0% yellow and 69.41% black. Its hue angle is 197.78°, with 52.94% saturation and 20% 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 luxury branding. White text on this color reaches a contrast ratio of 11.43:1 (WCAG AAA). The closest named color is Charcoal (#36454f), ΔE 6.28.

Description generated from the measured properties of this color.

HEX
RGB
RGB percent
CMY
CMYK
HSL
HSV / HSB
Web safe#003366
CIE-LAB
XYZ
xyY
CIE-LCH
CIE-LUV
Hunter-Lab
OKLab
Binary
Decimal
Relative luminance0.0419

Complementary

  1. #183e4e
  2. #4e2818

Split complementary

  1. #183e4e
  2. #4e1823
  3. #4e4318

Analogous

  1. #184e43
  2. #183e4e
  3. #18234e

Triadic

  1. #183e4e
  2. #4e183e
  3. #3e4e18

Tetradic

  1. #183e4e
  2. #28184e
  3. #4e2818
  4. #3e4e18

Square

  1. #183e4e
  2. #43184e
  3. #4e2818
  4. #234e18

Monochromatic

  1. #050c10
  2. #060f13
  3. #183e4e
  4. #2a6c88
  5. #3c9bc3

Shades

#183e4e mixed progressively with black.

  1. #183e4e
  2. #163846
  3. #13323e
  4. #112b37
  5. #0e252f
  6. #0c1f27
  7. #0a191f
  8. #071317
  9. #050c10
  10. #020608
  11. #000000

Tints

#183e4e mixed progressively with white.

  1. #183e4e
  2. #2f5160
  3. #466571
  4. #5d7883
  5. #748b95
  6. #8c9fa7
  7. #a3b2b8
  8. #bac5ca
  9. #d1d8dc
  10. #e8eced
  11. #ffffff

Tones

#183e4e mixed progressively with gray.

  1. #183e4e
  2. #224553
  3. #2d4b58
  4. #37525d
  5. #425862
  6. #4c5f67
  7. #56666c
  8. #616c71
  9. #6b7376
  10. #76797b
  11. #808080

Readable text 11.43:1 AA ✓ AA Large ✓ AAA ✓ AAA Large ✓
Readable text 1.84:1 AA ✕ AA Large ✕ AAA ✕ AAA Large ✕

Achromatopsia #3a3a3a ≈ 0.003% of males
Achromatomaly #2f3b43 ≈ 0.001% of males
Protanopia #363d4f ≈ 1.01% of males
Deuteranopia #2e374e ≈ 1.27% of males
Tritanopia #004343 ≈ 0.0001% of males
Protanomaly #2c3d4e ≈ 1.08% of males
Deuteranomaly #273a4e ≈ 4.63% of males
Tritanomaly #004148 ≈ 0.0002% of males
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Text in this color

Background in this color

Border in this color

Text color
.text-183e4e {
  color: #183e4e;
}
Background
.bg-183e4e {
  background-color: #183e4e;
  color: #ffffff;
}
Border
.border-183e4e {
  border: 2px solid #183e4e;
}
CSS variables
:root {
  --color-primary: #183e4e;
  --color-primary-rgb: 24 62 78;
  --color-primary-hsl: 198 53% 20%;
}
Gradient
.gradient-183e4e {
  background: linear-gradient(135deg, #183e4e, #18234e);
}
Colored shadow
.shadow-183e4e {
  box-shadow: 0 8px 24px rgb(24 62 78 / 0.35);
}

#36454f Charcoal ΔE 6.28 #004953 Midnight Green ΔE 7.45 #2a3439 Gunmetal ΔE 7.93 #003153 Prussian Blue ΔE 9.46 #414a4c Outer Space ΔE 10.09 #2f4f4f Dark Slate Gray ΔE 10.14 #2f4f4f Dark Slate Grey ΔE 10.14 #e7c1b1 Inverted #3a3a3a Grayscale 

Charcoal
#183e4e  rgb(24, 62, 78)  hsl(198, 53%, 20%)  Charcoal
#4e2818  rgb(78, 40, 24)  hsl(18, 53%, 20%)  Caput Mortuum
#4e183e  rgb(78, 24, 62)  hsl(318, 53%, 20%)  Tyrian Purple
#3e4e18  rgb(62, 78, 24)  hsl(78, 53%, 20%)  Army Green