Information about #663D42 color

#663D42 color image

Basic facts about this digital color

#663D42 falls into the Red Color Family — Mild Saturation, Neutral brightness. The mix behind it: rgb(102, 61, 66) — 40% red, 23.9% green, 25.9% blue; the print equivalent is CMYK 0 / 16 / 14 / 60. Curious how these numbers work? Read our RGB color codes guide.

#663D42 presents itself as a mildly saturated red — one that sits comfortably between light and dark. It is a natural fit for balanced palettes where no single element should shout. In The Official Register of Color Names it is a hair away from Solar Flare (#693E40). Nearby in the Register you will also find Brunette (#634041) and Purple Brown (#673A3F).

In RGB terms — rgb(102, 61, 66) — the red channel does the heavy lifting here. On this background, white text reaches a 9.1:1 contrast ratio (passing WCAG AAA); black stays at 2.3:1. On paper it relies strongly on black ink (K:60), 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.

#663D42 color variations

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

#663D42 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 #663D42

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

Solar Flare color link
Solar Flare

#693E40

Brunette color link
Brunette

#634041

Purple Brown color link
Purple Brown

#673A3F

Tawny Port color link
Tawny Port

#643A48

Grape Mouse color link
Grape Mouse

#63424B

Matchmaker color link
Matchmaker

#6D3540

Lexington color link
Lexington

#683E37

Deep Coffee color link
Deep Coffee

#704241

Rose Ebony color link
Rose Ebony

#674846

Catawba color link
Catawba

#703642

Conversions between color systems and etc.

  • HEX#663D42
  • RGB102, 61, 66
  • CMYK0, 16, 14, 60
  • CSSrgb(102, 61, 66)
  • HSL353°, 25%, 32%
  • HSL Precise352.683°, 25.153%, 31.961%
  • HSV353°, 40%, 40%
  • HSB353°, 40%, 40%
  • Normalized R (0.0–1.0)0.400
  • Normalized G (0.0–1.0)0.239
  • Normalized B (0.0–1.0)0.259
  • GLSLvec3(0.400, 0.239, 0.259)
  • GLSL with alphavec4(0.400, 0.239, 0.259, 1.000)
  • HLSL / Metalfloat3(0.400, 0.239, 0.259)
  • Percentage of Red in RGB40%
  • Percentage of Green in RGB23.9%
  • Percentage of Blue in RGB25.9%
  • Color FamilyRed
  • Saturation FamilyMild Saturation
  • Lightness FamilyNeutral
  • HEX ID663D42
  • DECIMAL ID6700354
  • Name LengthThis color has no name
  • Seen by search & AI crawlers24 times
  • Counting from2025-01-01