Information about #155B68 color

#155B68 color image

Basic facts about this digital color

In the Register's classification, #155B68 belongs to the Cyan Color Family, featuring High Saturation and Dark brightness. In numbers: rgb(21, 91, 104) (8.2% red, 35.7% green, 40.8% blue), or CMYK 33 / 5 / 0 / 59 for print. New to color codes? See our guide to RGB color codes.

#155B68 presents itself as a vivid, lively aqua cyan — one that carries a shadowy depth. 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 Caesar (#1B6767). Nearby in the Register you will also find JayHawk Blue (#194F6E) and Guru (#154C65).

Technically, the mix leans on its blue channel (rgb(21, 91, 104)), which gives #155B68 its character. If you plan to put text on a #155B68 background, choose white — the contrast ratio is 7.7:1 (passing WCAG AAA), while black manages only 2.7:1. Out of 16,777,216 possible colors, #155B68 is still unnamed — it can be claimed and named in The Official Register of Color Names.

#155B68 color variations

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

#155B68 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 #155B68

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

Caesar color link
Caesar

#1B6767

JayHawk Blue color link
JayHawk Blue

#194F6E

Guru color link
Guru

#154C65

Retro color link
Retro

#1B5256

Globe color link
Globe

#256761

Peacock Blue color link
Peacock Blue

#005F69

Petrol color link
Petrol

#005F6A

Dark Aqua color link
Dark Aqua

#05696B

Blue Stone color link
Blue Stone

#016162

Conversions between color systems and etc.

  • HEX#155B68
  • RGB21, 91, 104
  • CMYK33, 5, 0, 59
  • CSSrgb(21, 91, 104)
  • HSL189°, 66%, 25%
  • HSL Precise189.398°, 66.4%, 24.51%
  • HSV189°, 80%, 41%
  • HSB189°, 80%, 41%
  • Normalized R (0.0–1.0)0.082
  • Normalized G (0.0–1.0)0.357
  • Normalized B (0.0–1.0)0.408
  • GLSLvec3(0.082, 0.357, 0.408)
  • GLSL with alphavec4(0.082, 0.357, 0.408, 1.000)
  • HLSL / Metalfloat3(0.082, 0.357, 0.408)
  • Percentage of Red in RGB8.2%
  • Percentage of Green in RGB35.7%
  • Percentage of Blue in RGB40.8%
  • Color FamilyCyan
  • Saturation FamilyHigh Saturation
  • Lightness FamilyDark
  • HEX ID155B68
  • DECIMAL ID1399656
  • Name LengthThis color has no name
  • Seen by search & AI crawlers19 times
  • Counting from2025-01-01