Information about #1537CB color

#1537CB color image

Basic facts about this digital color

#1537CB falls into the Blue Color Family — High Saturation, Light brightness. Its exact recipe is rgb(21, 55, 203) — 8.2% red, 21.6% green, 79.6% blue — and for print it converts to CMYK 71 / 58 / 0 / 20. Curious how these numbers work? Read our RGB color codes guide.

The color #1537CB reads as a vivid, lively blue and carries an easy, daylight feel. 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 Fashion Blue (#2633CB). Slightly further away sit Blue Blue (#2242C7) and Persian Blue (#1C39BB).

In RGB terms — rgb(21, 55, 203) — the blue channel does the heavy lifting here. On this background, white text reaches a 8.6:1 contrast ratio (passing WCAG AAA); black stays at 2.4:1. #1537CB has no official name yet. If this shade means something to you, you can be the one to name it.

#1537CB color variations

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

#1537CB 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 #1537CB

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#1537CB
  • RGB21, 55, 203
  • CMYK71, 58, 0, 20
  • CSSrgb(21, 55, 203)
  • HSL229°, 81%, 44%
  • HSL Precise228.791°, 81.25%, 43.922%
  • HSV229°, 90%, 80%
  • HSB229°, 90%, 80%
  • Normalized R (0.0–1.0)0.082
  • Normalized G (0.0–1.0)0.216
  • Normalized B (0.0–1.0)0.796
  • GLSLvec3(0.082, 0.216, 0.796)
  • GLSL with alphavec4(0.082, 0.216, 0.796, 1.000)
  • HLSL / Metalfloat3(0.082, 0.216, 0.796)
  • Percentage of Red in RGB8.2%
  • Percentage of Green in RGB21.6%
  • Percentage of Blue in RGB79.6%
  • Color FamilyBlue
  • Saturation FamilyHigh Saturation
  • Lightness FamilyLight
  • HEX ID1537CB
  • DECIMAL ID1390539
  • Name LengthThis color has no name
  • Seen by search & AI crawlers23 times
  • Counting from2025-01-01