Information about #121B39 color

#121B39 color image

Basic facts about this digital color

#121B39 falls into the Blue Color Family — Moderate Saturation, Dark brightness. The mix behind it: rgb(18, 27, 57) — 7.1% red, 10.6% green, 22.4% blue; the print equivalent is CMYK 15 / 12 / 0 / 78. Curious how these numbers work? Read our RGB color codes guide.

#121B39 presents itself as a pleasantly vivid classic blue — one that stays on the darker end of the scale. It is a natural fit for moody backdrops, typography on light surfaces and premium packaging. In The Official Register of Color Names it is a near neighbor of Magnum (#112331). Slightly further away sit Titans Navy (#0C2340) and Nite Life (#1D2134).

Technically, the mix leans on its blue channel (rgb(18, 27, 57)), which gives #121B39 its character. On this background, white text reaches a 16.9:1 contrast ratio (passing WCAG AAA); black stays at 1.2:1. For print, note the heavy black component (K:78) — ink coverage matters with tones this deep. #121B39 has no official name yet. If this shade means something to you, you can be the one to name it.

#121B39 color variations

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

#121B39 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 #121B39

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#121B39
  • RGB18, 27, 57
  • CMYK15, 12, 0, 78
  • CSSrgb(18, 27, 57)
  • HSL226°, 52%, 15%
  • HSL Precise226.154°, 52%, 14.706%
  • HSV226°, 68%, 22%
  • HSB226°, 68%, 22%
  • Normalized R (0.0–1.0)0.071
  • Normalized G (0.0–1.0)0.106
  • Normalized B (0.0–1.0)0.224
  • GLSLvec3(0.071, 0.106, 0.224)
  • GLSL with alphavec4(0.071, 0.106, 0.224, 1.000)
  • HLSL / Metalfloat3(0.071, 0.106, 0.224)
  • Percentage of Red in RGB7.1%
  • Percentage of Green in RGB10.6%
  • Percentage of Blue in RGB22.4%
  • Color FamilyBlue
  • Saturation FamilyModerate Saturation
  • Lightness FamilyDark
  • HEX ID121B39
  • DECIMAL ID1186617
  • Name LengthThis color has no name
  • Seen by search & AI crawlers3 times
  • Counting from2025-01-01