Information about #37221D color

#37221D color image

Basic facts about this digital color

In the Register's classification, #37221D belongs to the Red Color Family, featuring Mild Saturation and Dark brightness. In numbers: rgb(55, 34, 29) (21.6% red, 13.3% green, 11.4% blue), or CMYK 0 / 8 / 10 / 78 for print. New to color codes? See our guide to RGB color codes.

A softly balanced earthy red, #37221D leans clearly toward the dark side. Designers typically reach for tones like this for dark UI themes, backgrounds and dramatic accents. In The Official Register of Color Names it is practically indistinguishable from Black Kite (#351E1C). Its next-closest registered neighbors are Scorched Brown (#351F19) and Brown Pod (#3C241B).

The recipe behind #37221D is rgb(55, 34, 29), with red as the dominant ingredient. Accessibility-wise, white text works best on #37221D: 14.9:1 contrast (passing WCAG AAA) versus 1.4:1 for black. On paper it relies strongly on black ink (K:78), so proof dark layouts before a large print run. Out of 16,777,216 possible colors, #37221D is still unnamed — it can be claimed and named in The Official Register of Color Names.

#37221D color variations

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

#37221D 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 #37221D

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

Black Kite color link
Black Kite

#351E1C

Brown Pod color link
Brown Pod

#3C241B

Cocoa Brown color link
Cocoa Brown

#35281E

Toorak color link
Toorak

#392523

Treehouse color link
Treehouse

#3B2820

Wood Bark color link
Wood Bark

#302621

Legal Dye color link
Legal Dye

#2E211B

Spitfire color link
Spitfire

#381921

Temptress color link
Temptress

#3C2126

Conversions between color systems and etc.

  • HEX#37221D
  • RGB55, 34, 29
  • CMYK0, 8, 10, 78
  • CSSrgb(55, 34, 29)
  • HSL12°, 31%, 16%
  • HSL Precise11.538°, 30.952%, 16.471%
  • HSV12°, 47%, 22%
  • HSB12°, 47%, 22%
  • Normalized R (0.0–1.0)0.216
  • Normalized G (0.0–1.0)0.133
  • Normalized B (0.0–1.0)0.114
  • GLSLvec3(0.216, 0.133, 0.114)
  • GLSL with alphavec4(0.216, 0.133, 0.114, 1.000)
  • HLSL / Metalfloat3(0.216, 0.133, 0.114)
  • Percentage of Red in RGB21.6%
  • Percentage of Green in RGB13.3%
  • Percentage of Blue in RGB11.4%
  • Color FamilyRed
  • Saturation FamilyMild Saturation
  • Lightness FamilyDark
  • HEX ID37221D
  • DECIMAL ID3613213
  • Name LengthThis color has no name
  • Seen by search & AI crawlers13 times
  • Counting from2025-01-01