Information about #18331B color

#18331B color image

Basic facts about this digital color

#18331B falls into the Green Color Family — Mild Saturation, Dark brightness. Its exact recipe is rgb(24, 51, 27) — 9.4% red, 20% green, 10.6% blue — and for print it converts to CMYK 11 / 0 / 9 / 80. Curious how these numbers work? Read our RGB color codes guide.

The color #18331B reads as a mildly saturated green and stays on the darker end of the scale. Expect to see shades like this in dark UI themes, backgrounds and dramatic accents. In The Official Register of Color Names it is a hair away from ProKnox Green (#1A331A). Slightly further away sit Celtic (#163222) and Phthalo Green (#123524).

Technically, the mix leans on its green channel (rgb(24, 51, 27)), which gives #18331B its character. Accessibility-wise, white text works best on #18331B: 13.7:1 contrast (passing WCAG AAA) versus 1.5:1 for black. On paper it relies strongly on black ink (K:80), so proof dark layouts before a large print run. No one has named #18331B so far. Register a name for it and it becomes a permanent record.

#18331B color variations

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

#18331B 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 #18331B

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

Celtic color link
Celtic

#163222

Deep Fir color link
Deep Fir

#193925

Bush color link
Bush

#0D2E1C

Cardin Green color link
Cardin Green

#1B3427

Kermadec color link
Kermadec

#1D2C2A

Madagascar color link
Madagascar

#172E2C

Myrtle color link
Myrtle

#21421E

Sentry color link
Sentry

#1C2728

Conversions between color systems and etc.

  • HEX#18331B
  • RGB24, 51, 27
  • CMYK11, 0, 9, 80
  • CSSrgb(24, 51, 27)
  • HSL127°, 36%, 15%
  • HSL Precise126.667°, 36%, 14.706%
  • HSV127°, 53%, 20%
  • HSB127°, 53%, 20%
  • Normalized R (0.0–1.0)0.094
  • Normalized G (0.0–1.0)0.200
  • Normalized B (0.0–1.0)0.106
  • GLSLvec3(0.094, 0.200, 0.106)
  • GLSL with alphavec4(0.094, 0.200, 0.106, 1.000)
  • HLSL / Metalfloat3(0.094, 0.200, 0.106)
  • Percentage of Red in RGB9.4%
  • Percentage of Green in RGB20%
  • Percentage of Blue in RGB10.6%
  • Color FamilyGreen
  • Saturation FamilyMild Saturation
  • Lightness FamilyDark
  • HEX ID18331B
  • DECIMAL ID1585947
  • Name LengthThis color has no name
  • Seen by search & AI crawlers8 times
  • Counting from2025-01-01