ColorTool
Log in
#233B4E

#233b4e ≈ Charcoal

  • azure
  • Lightness: low
  • Saturation: muted
  • Cool
Check contrast Explore in graph Random color

#233b4e is a color from the azure family, with low lightness and muted saturation. In the RGB model it is made of 13.73% red, 23.14% green and 30.59% blue; printed in CMYK it uses 55.13% cyan, 24.36% magenta, 0% yellow and 69.41% black. Its hue angle is 206.51°, with 38.05% saturation and 22.16% 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 11.62:1 (WCAG AAA). The closest named color is Charcoal (#36454f), ΔE 5.51.

Description generated from the measured properties of this color.

HEX
RGB
RGB percent
CMY
CMYK
HSL
HSV / HSB
Web safe#333366
CIE-LAB
XYZ
xyY
CIE-LCH
CIE-LUV
Hunter-Lab
OKLab
Binary
Decimal
Relative luminance0.0404

Complementary

  1. #233b4e
  2. #4e3623

Split complementary

  1. #233b4e
  2. #4e2326
  3. #4e4c23

Analogous

  1. #234e4c
  2. #233b4e
  3. #23264e

Triadic

  1. #233b4e
  2. #4e233b
  3. #3b4e23

Tetradic

  1. #233b4e
  2. #36234e
  3. #4e3623
  4. #3b4e23

Square

  1. #233b4e
  2. #4c234e
  3. #4e3623
  4. #264e23

Monochromatic

  1. #060b0e
  2. #0b1319
  3. #233b4e
  4. #3b6383
  5. #578ab3

Shades

#233b4e mixed progressively with black.

  1. #233b4e
  2. #203546
  3. #1c2f3e
  4. #192937
  5. #15232f
  6. #121e27
  7. #0e181f
  8. #0b1217
  9. #070c10
  10. #040608
  11. #000000

Tints

#233b4e mixed progressively with white.

  1. #233b4e
  2. #394f60
  3. #4f6271
  4. #657683
  5. #7b8995
  6. #919da7
  7. #a7b1b8
  8. #bdc4ca
  9. #d3d8dc
  10. #e9ebed
  11. #ffffff

Tones

#233b4e mixed progressively with gray.

  1. #233b4e
  2. #2c4253
  3. #364958
  4. #3f505d
  5. #485762
  6. #525e67
  7. #5b646c
  8. #646b71
  9. #6d7276
  10. #77797b
  11. #808080

Readable text 11.62:1 AA ✓ AA Large ✓ AAA ✓ AAA Large ✓
Readable text 1.81:1 AA ✕ AA Large ✕ AAA ✕ AAA Large ✕

Achromatopsia #393939 ≈ 0.003% of males
Achromatomaly #313a42 ≈ 0.001% of males
Protanopia #333b4f ≈ 1.01% of males
Deuteranopia #2d374e ≈ 1.27% of males
Tritanopia #0d4041 ≈ 0.0001% of males
Protanomaly #2d3b4f ≈ 1.08% of males
Deuteranomaly #29384e ≈ 4.63% of males
Tritanomaly #183e47 ≈ 0.0002% of males
Simulate on your own image

Text in this color

Background in this color

Border in this color

Text color
.text-233b4e {
  color: #233b4e;
}
Background
.bg-233b4e {
  background-color: #233b4e;
  color: #ffffff;
}
Border
.border-233b4e {
  border: 2px solid #233b4e;
}
CSS variables
:root {
  --color-primary: #233b4e;
  --color-primary-rgb: 35 59 78;
  --color-primary-hsl: 207 38% 22%;
}
Gradient
.gradient-233b4e {
  background: linear-gradient(135deg, #233b4e, #23264e);
}
Colored shadow
.shadow-233b4e {
  box-shadow: 0 8px 24px rgb(35 59 78 / 0.35);
}

#36454f Charcoal ΔE 5.51 #003153 Prussian Blue ΔE 6.28 #2a3439 Gunmetal ΔE 7.19 #003399 Smalt ΔE 9.74 #353839 Onyx ΔE 10.02 #414a4c Outer Space ΔE 10.17 #1034a6 Egyptian Blue ΔE 10.65 #dcc4b1 Inverted #393939 Grayscale 

Charcoal
#233b4e  rgb(35, 59, 78)  hsl(207, 38%, 22%)  Charcoal
#4e3623  rgb(78, 54, 35)  hsl(27, 38%, 22%)  Bistre
#4e233b  rgb(78, 35, 59)  hsl(327, 38%, 22%)  Tyrian Purple
#3b4e23  rgb(59, 78, 35)  hsl(87, 38%, 22%)  Army Green