Information about #51818E color

#51818E color image

Basic facts about this digital color

In the Register's classification, #51818E belongs to the Cyan Color Family, featuring Mild Saturation and Light brightness. In numbers: rgb(81, 129, 142) (31.8% red, 50.6% green, 55.7% blue), or CMYK 24 / 5 / 0 / 44 for print. New to color codes? See our guide to RGB color codes.

#51818E presents itself as a moderately toned water-like cyan — one that feels open and friendly. In practice it works well for understated, calm designs that favor harmony over drama. In The Official Register of Color Names it is just a few steps away from Antique Blue (#4E7B96). Its next-closest registered neighbors are Norwester (#48798A) and Paradiso (#488084).

In RGB terms — rgb(81, 129, 142) — the blue channel does the heavy lifting here. If you plan to put text on a #51818E background, choose black — the contrast ratio is 4.9:1 (passing WCAG AA), while white manages only 4.3:1. No one has named #51818E so far. Register a name for it and it becomes a permanent record.

#51818E color variations

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

#51818E 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 #51818E

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

Antique Blue color link
Antique Blue

#4E7B96

Norwester color link
Norwester

#48798A

Paradiso color link
Paradiso

#488084

Stormy Blue color link
Stormy Blue

#507B9C

Half Baked color link
Half Baked

#558F93

Blue Grey color link
Blue Grey

#607C8E

Hippie Blue color link
Hippie Blue

#49889A

Steel Teal color link
Steel Teal

#5F8A8B

Patriot color link
Patriot

#4F9292

Dusty Teal color link
Dusty Teal

#4C9085

Panorama color link
Panorama

#597499

Conversions between color systems and etc.

  • HEX#51818E
  • RGB81, 129, 142
  • CMYK24, 5, 0, 44
  • CSSrgb(81, 129, 142)
  • HSL193°, 27%, 44%
  • HSL Precise192.787°, 27.354%, 43.725%
  • HSV193°, 43%, 56%
  • HSB193°, 43%, 56%
  • Normalized R (0.0–1.0)0.318
  • Normalized G (0.0–1.0)0.506
  • Normalized B (0.0–1.0)0.557
  • GLSLvec3(0.318, 0.506, 0.557)
  • GLSL with alphavec4(0.318, 0.506, 0.557, 1.000)
  • HLSL / Metalfloat3(0.318, 0.506, 0.557)
  • Percentage of Red in RGB31.8%
  • Percentage of Green in RGB50.6%
  • Percentage of Blue in RGB55.7%
  • Color FamilyCyan
  • Saturation FamilyMild Saturation
  • Lightness FamilyLight
  • HEX ID51818E
  • DECIMAL ID5341582
  • Name LengthThis color has no name
  • Seen by search & AI crawlers11 times
  • Counting from2025-01-01