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#171E28

#171e28 ≈ Rich Black

  • azure
  • Lightness: very low
  • Saturation: muted
  • Cool
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#171e28 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, 11.76% green and 15.69% blue; printed in CMYK it uses 42.5% cyan, 25% magenta, 0% yellow and 84.31% black. Its hue angle is 215.29°, with 26.98% saturation and 12.35% 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 corporate identities. White text on this color reaches a contrast ratio of 16.76:1 (WCAG AAA). The closest named color is Rich Black (#010b13), ΔE 5.81.

Description generated from the measured properties of this color.

HEX
RGB
RGB percent
CMY
CMYK
HSL
HSV / HSB
Web safe#003333
CIE-LAB
XYZ
xyY
CIE-LCH
CIE-LUV
Hunter-Lab
OKLab
Binary
Decimal
Relative luminance0.0126

Complementary

  1. #171e28
  2. #282117

Split complementary

  1. #171e28
  2. #281817
  3. #262817

Analogous

  1. #172628
  2. #171e28
  3. #181728

Triadic

  1. #171e28
  2. #28171e
  3. #1e2817

Tetradic

  1. #171e28
  2. #211728
  3. #282117
  4. #1e2817

Square

  1. #171e28
  2. #281726
  3. #282117
  4. #172818

Monochromatic

  1. #070a0d
  2. #070a0d
  3. #171e28
  4. #334259
  5. #4f6789

Shades

#171e28 mixed progressively with black.

  1. #171e28
  2. #151b24
  3. #121820
  4. #10151c
  5. #0e1218
  6. #0c0f14
  7. #090c10
  8. #07090c
  9. #050608
  10. #020304
  11. #000000

Tints

#171e28 mixed progressively with white.

  1. #171e28
  2. #2e353e
  3. #454b53
  4. #5d6269
  5. #74787e
  6. #8b8f94
  7. #a2a5a9
  8. #b9bcbf
  9. #d1d2d4
  10. #e8e9ea
  11. #ffffff

Tones

#171e28 mixed progressively with gray.

  1. #171e28
  2. #222831
  3. #2c323a
  4. #373b42
  5. #41454b
  6. #4c4f54
  7. #56595d
  8. #616366
  9. #6b6c6e
  10. #767677
  11. #808080

Readable text 16.76:1 AA ✓ AA Large ✓ AAA ✓ AAA Large ✓
Readable text 1.25:1 AA ✕ AA Large ✕ AAA ✕ AAA Large ✕

Achromatopsia #1e1e1e ≈ 0.003% of males
Achromatomaly #1b1e22 ≈ 0.001% of males
Protanopia #1a1e28 ≈ 1.01% of males
Deuteranopia #191d28 ≈ 1.27% of males
Tritanopia #122021 ≈ 0.0001% of males
Protanomaly #191e28 ≈ 1.08% of males
Deuteranomaly #181d28 ≈ 4.63% of males
Tritanomaly #141f24 ≈ 0.0002% of males
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Text in this color

Background in this color

Border in this color

Text color
.text-171e28 {
  color: #171e28;
}
Background
.bg-171e28 {
  background-color: #171e28;
  color: #ffffff;
}
Border
.border-171e28 {
  border: 2px solid #171e28;
}
CSS variables
:root {
  --color-primary: #171e28;
  --color-primary-rgb: 23 30 40;
  --color-primary-hsl: 215 27% 12%;
}
Gradient
.gradient-171e28 {
  background: linear-gradient(135deg, #171e28, #181728);
}
Colored shadow
.shadow-171e28 {
  box-shadow: 0 8px 24px rgb(23 30 40 / 0.35);
}

#010b13 Rich Black ΔE 5.81 #2a3439 Gunmetal ΔE 8.05 #000000 Black ΔE 9.37 #343434 Jet ΔE 9.73 #100c08 Smoky Black ΔE 9.77 #353839 Onyx ΔE 10.07 #1a1110 Licorice ΔE 10.61 #e8e1d7 Inverted #1e1e1e Grayscale 

Rich Black
#171e28  rgb(23, 30, 40)  hsl(215, 27%, 12%)  Rich Black
#282117  rgb(40, 33, 23)  hsl(35, 27%, 12%)  Bistre
#28171e  rgb(40, 23, 30)  hsl(335, 27%, 12%)  Licorice
#1e2817  rgb(30, 40, 23)  hsl(95, 27%, 12%)  Phthalo Green