Information about #183128 color

#183128 color image

Basic facts about this digital color

In the Register's classification, #183128 belongs to the Spring Green Color Family, featuring Mild Saturation and Dark brightness. The mix behind it: rgb(24, 49, 40) — 9.4% red, 19.2% green, 15.7% blue; the print equivalent is CMYK 10 / 0 / 4 / 81. New to color codes? See our guide to RGB color codes.

The color #183128 reads as a mildly saturated fresh green-cyan and carries a shadowy depth. Designers typically reach for tones like this for night-mode interfaces and high-contrast pairings with light text. In The Official Register of Color Names it is almost identical to Cardin Green (#1B3427). Nearby in the Register you will also find Madagascar (#172E2C) and Celtic (#163222).

Technically, the mix leans on its green channel (rgb(24, 49, 40)), which gives #183128 its character. If you plan to put text on a #183128 background, choose white — the contrast ratio is 13.9:1 (passing WCAG AAA), while black manages only 1.5:1. For print, note the heavy black component (K:81) — ink coverage matters with tones this deep. Out of 16,777,216 possible colors, #183128 is still unnamed — it can be claimed and named in The Official Register of Color Names.

#183128 color variations

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

#183128 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 #183128

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#183128
  • RGB24, 49, 40
  • CMYK10, 0, 4, 81
  • CSSrgb(24, 49, 40)
  • HSL158°, 34%, 14%
  • HSL Precise158.4°, 34.247%, 14.314%
  • HSV158°, 51%, 19%
  • HSB158°, 51%, 19%
  • Normalized R (0.0–1.0)0.094
  • Normalized G (0.0–1.0)0.192
  • Normalized B (0.0–1.0)0.157
  • GLSLvec3(0.094, 0.192, 0.157)
  • GLSL with alphavec4(0.094, 0.192, 0.157, 1.000)
  • HLSL / Metalfloat3(0.094, 0.192, 0.157)
  • Percentage of Red in RGB9.4%
  • Percentage of Green in RGB19.2%
  • Percentage of Blue in RGB15.7%
  • Color FamilySpring Green
  • Saturation FamilyMild Saturation
  • Lightness FamilyDark
  • HEX ID183128
  • DECIMAL ID1585448
  • Name LengthThis color has no name
  • Seen by search & AI crawlers8 times
  • Counting from2025-01-01