Information about #381B3B color

#381B3B color image

Basic facts about this digital color

In the Register's classification, #381B3B belongs to the Magenta Color Family, featuring Mild Saturation and Dark brightness. In numbers: rgb(56, 27, 59) (22% red, 10.6% green, 23.1% blue), or CMYK 1 / 13 / 0 / 77 for print. Curious how these numbers work? Read our RGB color codes guide.

#381B3B presents itself as a softly balanced electric magenta — one that leans clearly toward the dark side. It is a natural fit for night-mode interfaces and high-contrast pairings with light text. In The Official Register of Color Names it is almost identical to Deep Purple (#3A243B). Its next-closest registered neighbors are Blackcurrant (#2E183B) and Upstage (#332033).

The recipe behind #381B3B is rgb(56, 27, 59), with blue as the dominant ingredient. If you plan to put text on a #381B3B background, choose white — the contrast ratio is 15.1:1 (passing WCAG AAA), while black manages only 1.4:1. On paper it relies strongly on black ink (K:77), so proof dark layouts before a large print run. Like most of the 16.7 million digital colors, this one is still waiting for a name — naming it takes a minute.

#381B3B color variations

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

#381B3B 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 #381B3B

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

Deep Purple color link
Deep Purple

#3A243B

Blackcurrant color link
Blackcurrant

#2E183B

Upstage color link
Upstage

#332033

Dark Purple color link
Dark Purple

#301934

Ab Fab color link
Ab Fab

#321B2F

Tarot color link
Tarot

#38293D

Showtime color link
Showtime

#2F263A

Passion color link
Passion

#3B2A39

Violet Noir color link
Violet Noir

#2E1F47

Rasputin color link
Rasputin

#2F2735

Conversions between color systems and etc.

  • HEX#381B3B
  • RGB56, 27, 59
  • CMYK1, 13, 0, 77
  • CSSrgb(56, 27, 59)
  • HSL294°, 37%, 17%
  • HSL Precise294.375°, 37.209%, 16.863%
  • HSV294°, 54%, 23%
  • HSB294°, 54%, 23%
  • Normalized R (0.0–1.0)0.220
  • Normalized G (0.0–1.0)0.106
  • Normalized B (0.0–1.0)0.231
  • GLSLvec3(0.220, 0.106, 0.231)
  • GLSL with alphavec4(0.220, 0.106, 0.231, 1.000)
  • HLSL / Metalfloat3(0.220, 0.106, 0.231)
  • Percentage of Red in RGB22%
  • Percentage of Green in RGB10.6%
  • Percentage of Blue in RGB23.1%
  • Color FamilyMagenta
  • Saturation FamilyMild Saturation
  • Lightness FamilyDark
  • HEX ID381B3B
  • DECIMAL ID3676987
  • Name LengthThis color has no name
  • Seen by search & AI crawlers14 times
  • Counting from2025-01-01