Information about #383D51 color

#383D51 color image

Basic facts about this digital color

#383D51 falls into the Blue Color Family — Low Saturation, Neutral brightness. Its exact recipe is rgb(56, 61, 81) — 22% red, 23.9% green, 31.8% blue — and for print it converts to CMYK 10 / 8 / 0 / 68. Curious how these numbers work? Read our RGB color codes guide.

#383D51 is a softly toned classic blue that occupies the middle of the lightness scale. It is a natural fit for balanced palettes where no single element should shout. In The Official Register of Color Names it is practically indistinguishable from Sputnik (#373E54). Slightly further away sit Cloud Burst (#353E4F) and Avalanche (#354152).

The recipe behind #383D51 is rgb(56, 61, 81), with blue as the dominant ingredient. On this background, white text reaches a 10.7:1 contrast ratio (passing WCAG AAA); black stays at 2.0:1. On paper it relies strongly on black ink (K:68), so proof dark layouts before a large print run. Out of 16,777,216 possible colors, #383D51 is still unnamed — it can be claimed and named in The Official Register of Color Names.

#383D51 color variations

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

#383D51 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 #383D51

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

Sputnik color link
Sputnik

#373E54

Cloud Burst color link
Cloud Burst

#353E4F

Avalanche color link
Avalanche

#354152

Catwalk color link
Catwalk

#3D3E4C

Charcoal color link
Charcoal

#36454F

Arsenic color link
Arsenic

#3B444B

Vintage Blue color link
Vintage Blue

#303D57

Rhino color link
Rhino

#3D4653

Conversions between color systems and etc.

  • HEX#383D51
  • RGB56, 61, 81
  • CMYK10, 8, 0, 68
  • CSSrgb(56, 61, 81)
  • HSL228°, 18%, 27%
  • HSL Precise228°, 18.248%, 26.863%
  • HSV228°, 31%, 32%
  • HSB228°, 31%, 32%
  • Normalized R (0.0–1.0)0.220
  • Normalized G (0.0–1.0)0.239
  • Normalized B (0.0–1.0)0.318
  • GLSLvec3(0.220, 0.239, 0.318)
  • GLSL with alphavec4(0.220, 0.239, 0.318, 1.000)
  • HLSL / Metalfloat3(0.220, 0.239, 0.318)
  • Percentage of Red in RGB22%
  • Percentage of Green in RGB23.9%
  • Percentage of Blue in RGB31.8%
  • Color FamilyBlue
  • Saturation FamilyLow Saturation
  • Lightness FamilyNeutral
  • HEX ID383D51
  • DECIMAL ID3685713
  • Name LengthThis color has no name
  • Seen by search & AI crawlers30 times
  • Counting from2025-01-01