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#173B4D

#173b4d ≈ Charcoal

  • azure
  • Lightness: very low
  • Saturation: muted
  • Cool
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#173b4d is a color from the azure family, with very low lightness and muted saturation. In the RGB model it is made of 9.02% red, 23.14% green and 30.2% blue; printed in CMYK it uses 70.13% cyan, 23.38% magenta, 0% yellow and 69.8% black. Its hue angle is 200°, with 54% saturation and 19.61% 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 11.87:1 (WCAG AAA). The closest named color is Charcoal (#36454f), ΔE 6.43.

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 luminance0.0385

Complementary

  1. #173b4d
  2. #4d2917

Split complementary

  1. #173b4d
  2. #4d1720
  3. #4d4417

Analogous

  1. #174d44
  2. #173b4d
  3. #17204d

Triadic

  1. #173b4d
  2. #4d173b
  3. #3b4d17

Tetradic

  1. #173b4d
  2. #29174d
  3. #4d2917
  4. #3b4d17

Square

  1. #173b4d
  2. #44174d
  3. #4d2917
  4. #204d17

Monochromatic

  1. #050c10
  2. #050e12
  3. #173b4d
  4. #296888
  5. #3a95c3

Shades

#173b4d mixed progressively with black.

  1. #173b4d
  2. #153545
  3. #122f3e
  4. #102936
  5. #0e232e
  6. #0c1e27
  7. #09181f
  8. #071217
  9. #050c0f
  10. #020608
  11. #000000

Tints

#173b4d mixed progressively with white.

  1. #173b4d
  2. #2e4f5f
  3. #456271
  4. #5d7682
  5. #748994
  6. #8b9da6
  7. #a2b1b8
  8. #b9c4ca
  9. #d1d8db
  10. #e8ebed
  11. #ffffff

Tones

#173b4d mixed progressively with gray.

  1. #173b4d
  2. #224252
  3. #2c4957
  4. #37505c
  5. #415761
  6. #4c5e67
  7. #56646c
  8. #616b71
  9. #6b7276
  10. #76797b
  11. #808080

Readable text 11.87:1 AA ✓ AA Large ✓ AAA ✓ AAA Large ✓
Readable text 1.77:1 AA ✕ AA Large ✕ AAA ✕ AAA Large ✕

Achromatopsia #373737 ≈ 0.003% of males
Achromatomaly #2d3941 ≈ 0.001% of males
Protanopia #323a4e ≈ 1.01% of males
Deuteranopia #2b354d ≈ 1.27% of males
Tritanopia #004041 ≈ 0.0001% of males
Protanomaly #2a3b4e ≈ 1.08% of males
Deuteranomaly #24374d ≈ 4.63% of males
Tritanomaly #003e46 ≈ 0.0002% of males
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Text in this color

Background in this color

Border in this color

Text color
.text-173b4d {
  color: #173b4d;
}
Background
.bg-173b4d {
  background-color: #173b4d;
  color: #ffffff;
}
Border
.border-173b4d {
  border: 2px solid #173b4d;
}
CSS variables
:root {
  --color-primary: #173b4d;
  --color-primary-rgb: 23 59 77;
  --color-primary-hsl: 200 54% 20%;
}
Gradient
.gradient-173b4d {
  background: linear-gradient(135deg, #173b4d, #17204d);
}
Colored shadow
.shadow-173b4d {
  box-shadow: 0 8px 24px rgb(23 59 77 / 0.35);
}

#36454f Charcoal ΔE 6.43 #2a3439 Gunmetal ΔE 7.69 #003153 Prussian Blue ΔE 7.73 #004953 Midnight Green ΔE 9.06 #003399 Smalt ΔE 10.67 #414a4c Outer Space ΔE 10.68 #353839 Onyx ΔE 11.07 #e8c4b2 Inverted #373737 Grayscale 

Charcoal
#173b4d  rgb(23, 59, 77)  hsl(200, 54%, 20%)  Charcoal
#4d2917  rgb(77, 41, 23)  hsl(20, 54%, 20%)  Caput Mortuum
#4d173b  rgb(77, 23, 59)  hsl(320, 54%, 20%)  Tyrian Purple
#3b4d17  rgb(59, 77, 23)  hsl(80, 54%, 20%)  Army Green