Information about #155F5B color

#155F5B color image

Basic facts about this digital color

The digital color #155F5B is classified in the Register under the Cyan Color Family, with High Saturation and Dark brightness. In numbers: rgb(21, 95, 91) (8.2% red, 37.3% green, 35.7% blue), or CMYK 29 / 0 / 2 / 63 for print. New to color codes? See our guide to RGB color codes.

#155F5B is a strongly colored water-like cyan that leans clearly toward the dark side. In practice it works well for night-mode interfaces and high-contrast pairings with light text. In The Official Register of Color Names it is just a few steps away from Dark Green Blue (#1F6357). Its next-closest registered neighbors are Retro (#1B5256) and Caesar (#1B6767).

In RGB terms — rgb(21, 95, 91) — the green channel does the heavy lifting here. If you plan to put text on a #155F5B background, choose white — the contrast ratio is 7.4:1 (passing WCAG AAA), while black manages only 2.8:1. For print, note the heavy black component (K:63) — ink coverage matters with tones this deep. No one has named #155F5B so far. Register a name for it and it becomes a permanent record.

#155F5B color variations

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

#155F5B 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 #155F5B

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

Retro color link
Retro

#1B5256

Caesar color link
Caesar

#1B6767

Robin Hood color link
Robin Hood

#167057

Eden color link
Eden

#266255

Globe color link
Globe

#256761

Beatnik color link
Beatnik

#1F4F54

Push Play color link
Push Play

#21584C

Dark Opal color link
Dark Opal

#275953

Evening Sea color link
Evening Sea

#26604F

Mosque color link
Mosque

#005F5B

Conversions between color systems and etc.

  • HEX#155F5B
  • RGB21, 95, 91
  • CMYK29, 0, 2, 63
  • CSSrgb(21, 95, 91)
  • HSL177°, 64%, 23%
  • HSL Precise176.757°, 63.793%, 22.745%
  • HSV177°, 78%, 37%
  • HSB177°, 78%, 37%
  • Normalized R (0.0–1.0)0.082
  • Normalized G (0.0–1.0)0.373
  • Normalized B (0.0–1.0)0.357
  • GLSLvec3(0.082, 0.373, 0.357)
  • GLSL with alphavec4(0.082, 0.373, 0.357, 1.000)
  • HLSL / Metalfloat3(0.082, 0.373, 0.357)
  • Percentage of Red in RGB8.2%
  • Percentage of Green in RGB37.3%
  • Percentage of Blue in RGB35.7%
  • Color FamilyCyan
  • Saturation FamilyHigh Saturation
  • Lightness FamilyDark
  • HEX ID155F5B
  • DECIMAL ID1400667
  • Name LengthThis color has no name
  • Seen by search & AI crawlers9 times
  • Counting from2025-01-01