Information about #303188 color

#303188 color image

Basic facts about this digital color

In the Register's classification, #303188 belongs to the Blue Color Family, featuring Moderate Saturation and Neutral brightness. The mix behind it: rgb(48, 49, 136) — 18.8% red, 19.2% green, 53.3% blue; the print equivalent is CMYK 35 / 34 / 0 / 47. New to color codes? See our guide to RGB color codes.

#303188 is a pleasantly vivid classic blue that sits comfortably between light and dark. In practice it works well for understated, calm designs that favor harmony over drama. In The Official Register of Color Names it is a hair away from Cosmic Cobalt (#2E2D88). Nearby in the Register you will also find Picotee Blue (#2E2787) and Kudos (#353A8B).

Technically, the mix leans on its blue channel (rgb(48, 49, 136)), which gives #303188 its character. If you plan to put text on a #303188 background, choose white — the contrast ratio is 10.9:1 (passing WCAG AAA), while black manages only 1.9:1. Out of 16,777,216 possible colors, #303188 is still unnamed — it can be claimed and named in The Official Register of Color Names.

#303188 color variations

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

#303188 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 #303188

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#303188
  • RGB48, 49, 136
  • CMYK35, 34, 0, 47
  • CSSrgb(48, 49, 136)
  • HSL239°, 48%, 36%
  • HSL Precise239.318°, 47.826%, 36.078%
  • HSV239°, 65%, 53%
  • HSB239°, 65%, 53%
  • Normalized R (0.0–1.0)0.188
  • Normalized G (0.0–1.0)0.192
  • Normalized B (0.0–1.0)0.533
  • GLSLvec3(0.188, 0.192, 0.533)
  • GLSL with alphavec4(0.188, 0.192, 0.533, 1.000)
  • HLSL / Metalfloat3(0.188, 0.192, 0.533)
  • Percentage of Red in RGB18.8%
  • Percentage of Green in RGB19.2%
  • Percentage of Blue in RGB53.3%
  • Color FamilyBlue
  • Saturation FamilyModerate Saturation
  • Lightness FamilyNeutral
  • HEX ID303188
  • DECIMAL ID3158408
  • Name LengthThis color has no name
  • Seen by search & AI crawlers14 times
  • Counting from2025-01-01