Information about #18172A color

#18172A color image

Basic facts about this digital color

#18172A falls into the Blue Color Family — Mild Saturation, Dark brightness. The mix behind it: rgb(24, 23, 42) — 9.4% red, 9% green, 16.5% blue; the print equivalent is CMYK 7 / 7 / 0 / 84. Curious how these numbers work? Read our RGB color codes guide.

A softly balanced blue, #18172A leans clearly toward the dark side. Expect to see shades like this in dark UI themes, backgrounds and dramatic accents. In The Official Register of Color Names it is almost identical to Elderberry (#17182B). Its next-closest registered neighbors are I am Core Group International (#151529) and Coarse Wool (#181B26).

Technically, the mix leans on its blue channel (rgb(24, 23, 42)), which gives #18172A its character. Accessibility-wise, white text works best on #18172A: 17.6:1 contrast (passing WCAG AAA) versus 1.2:1 for black. For print, note the heavy black component (K:84) — ink coverage matters with tones this deep. Out of 16,777,216 possible colors, #18172A is still unnamed — it can be claimed and named in The Official Register of Color Names.

#18172A color variations

View this color variations of tints, shades, tones and hues.

#18172A color harmonies

Color harmonies are pleasing color schemes created according to their position on a color wheel.

Complementary

Complementary color schemes are made by picking two opposite colors con the color wheel. They appear vibrant near to each other.

Complementary color schemes

Split complementary

Split complementary schemes are like complementary but they uses two adiacent colors of the complement. They are more flexible than complementary ones.

Split complementary color scheme

Analogous

Analogous color schemes are made by picking three colors that are next to each other on the color wheel. They are perceived as calm and serene.

Analogous color scheme

Triadic

Triadic color schemes are created by picking three colors equally spaced on the color wheel. They appear quite contrasted and multicolored.

Triadic color scheme

Tetradic

Tetradic color schemes are made form two couples of complementary colors in a rectangular shape on the color wheel.

Tetradic color scheme

Square

Square color schemes are like tetradic arranged in a square instead of rectangle. Colors appear even more contrasting.

Square color scheme

Nearest named colors to #18172A

The closest officially registered color names in the Register, ordered by similarity — your shade’s neighborhood is already being claimed.

Conversions between color systems and etc.

  • HEX#18172A
  • RGB24, 23, 42
  • CMYK7, 7, 0, 84
  • CSSrgb(24, 23, 42)
  • HSL243°, 29%, 13%
  • HSL Precise243.158°, 29.231%, 12.745%
  • HSV243°, 45%, 16%
  • HSB243°, 45%, 16%
  • Normalized R (0.0–1.0)0.094
  • Normalized G (0.0–1.0)0.090
  • Normalized B (0.0–1.0)0.165
  • GLSLvec3(0.094, 0.090, 0.165)
  • GLSL with alphavec4(0.094, 0.090, 0.165, 1.000)
  • HLSL / Metalfloat3(0.094, 0.090, 0.165)
  • Percentage of Red in RGB9.4%
  • Percentage of Green in RGB9%
  • Percentage of Blue in RGB16.5%
  • Color FamilyBlue
  • Saturation FamilyMild Saturation
  • Lightness FamilyDark
  • HEX ID18172A
  • DECIMAL ID1578794
  • Name LengthThis color has no name
  • Seen by search & AI crawlers13 times
  • Counting from2025-01-01