Information about #181B81 color

#181B81 color image

Basic facts about this digital color

The digital color #181B81 is classified in the Register under the Blue Color Family, with High Saturation and Neutral brightness. Its exact recipe is rgb(24, 27, 129) — 9.4% red, 10.6% green, 50.6% blue — and for print it converts to CMYK 41 / 40 / 0 / 49. Curious how these numbers work? Read our RGB color codes guide.

A energetic, saturated blue, #181B81 sits comfortably between light and dark. Expect to see shades like this in logos, highlights and anything that needs to be noticed first. In The Official Register of Color Names it is a near neighbor of Denim Dark Blue (#151B8D). Nearby in the Register you will also find Jacksons Purple (#20208D) and Visa Blue (#1A1F71).

In RGB terms — rgb(24, 27, 129) — the blue channel does the heavy lifting here. On this background, white text reaches a 13.9:1 contrast ratio (passing WCAG AAA); black stays at 1.5:1. No one has named #181B81 so far. Register a name for it and it becomes a permanent record.

#181B81 color variations

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

#181B81 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 #181B81

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

Visa Blue color link
Visa Blue

#1A1F71

PHCH color link
PHCH

#201173

Royal color link
Royal

#0C1793

Elvin color link
Elvin

#2A128A

Luxury Blue color link
Luxury Blue

#1F2B8F

Lapis Blue color link
Lapis Blue

#15317E

Acceptance color link
Acceptance

#001B7F

Conversions between color systems and etc.

  • HEX#181B81
  • RGB24, 27, 129
  • CMYK41, 40, 0, 49
  • CSSrgb(24, 27, 129)
  • HSL238°, 69%, 30%
  • HSL Precise238.286°, 68.627%, 30%
  • HSV238°, 81%, 51%
  • HSB238°, 81%, 51%
  • Normalized R (0.0–1.0)0.094
  • Normalized G (0.0–1.0)0.106
  • Normalized B (0.0–1.0)0.506
  • GLSLvec3(0.094, 0.106, 0.506)
  • GLSL with alphavec4(0.094, 0.106, 0.506, 1.000)
  • HLSL / Metalfloat3(0.094, 0.106, 0.506)
  • Percentage of Red in RGB9.4%
  • Percentage of Green in RGB10.6%
  • Percentage of Blue in RGB50.6%
  • Color FamilyBlue
  • Saturation FamilyHigh Saturation
  • Lightness FamilyNeutral
  • HEX ID181B81
  • DECIMAL ID1579905
  • Name LengthThis color has no name
  • Seen by search & AI crawlers13 times
  • Counting from2025-01-01