Information about #121C00 color

#121C00 color image

Basic facts about this digital color

#121C00 falls into the Chartreuse Color Family — Full Saturation, Very Dark brightness. The mix behind it: rgb(18, 28, 0) — 7.1% red, 11% green, 0% blue; the print equivalent is CMYK 4 / 0 / 11 / 89. Curious how these numbers work? Read our RGB color codes guide.

A pure, full-strength zesty chartreuse, #121C00 sits very close to black. 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 Very Deep Chartreuse Green (#0E1D00). Its next-closest registered neighbors are Very Deep Olive (#1D1D00) and Adomo (#121002).

The recipe behind #121C00 is rgb(18, 28, 0), with green as the dominant ingredient. Accessibility-wise, white text works best on #121C00: 17.6:1 contrast (passing WCAG AAA) versus 1.2:1 for black. For print, note the heavy black component (K:89) — ink coverage matters with tones this deep. #121C00 has no official name yet. If this shade means something to you, you can be the one to name it.

#121C00 color variations

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

#121C00 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 #121C00

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#121C00
  • RGB18, 28, 0
  • CMYK4, 0, 11, 89
  • CSSrgb(18, 28, 0)
  • HSL81°, 100%, 5%
  • HSL Precise81.429°, 100%, 5.49%
  • HSV81°, 100%, 11%
  • HSB81°, 100%, 11%
  • Normalized R (0.0–1.0)0.071
  • Normalized G (0.0–1.0)0.110
  • Normalized B (0.0–1.0)0.000
  • GLSLvec3(0.071, 0.110, 0.000)
  • GLSL with alphavec4(0.071, 0.110, 0.000, 1.000)
  • HLSL / Metalfloat3(0.071, 0.110, 0.000)
  • Percentage of Red in RGB7.1%
  • Percentage of Green in RGB11%
  • Percentage of Blue in RGB0%
  • Color FamilyChartreuse
  • Saturation FamilyFull Saturation
  • Lightness FamilyVery Dark
  • HEX ID121C00
  • DECIMAL ID1186816
  • Name LengthThis color has no name
  • Seen by search & AI crawlers11 times
  • Counting from2025-01-01