Information about #664B4F color

#664B4F color image

Basic facts about this digital color

In the Register's classification, #664B4F belongs to the Red Color Family, featuring Low Saturation and Neutral brightness. The mix behind it: rgb(102, 75, 79) — 40% red, 29.4% green, 31% blue; the print equivalent is CMYK 0 / 11 / 9 / 60. Curious how these numbers work? Read our RGB color codes guide.

#664B4F is a softly toned earthy red that holds a balanced mid-tone. It is a natural fit for versatile mid-ground roles, from cards to secondary buttons. In The Official Register of Color Names it is a hair away from Quarter Barista (#614F4F). Its next-closest registered neighbors are Galaxy (#63464B) and Spellbound (#6D4A4E).

The recipe behind #664B4F is rgb(102, 75, 79), with red as the dominant ingredient. Accessibility-wise, white text works best on #664B4F: 7.8:1 contrast (passing WCAG AAA) versus 2.7:1 for black. For print, note the heavy black component (K:60) — ink coverage matters with tones this deep. #664B4F has no official name yet. If this shade means something to you, you can be the one to name it.

#664B4F color variations

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

#664B4F 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 #664B4F

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

Galaxy color link
Galaxy

#63464B

Spellbound color link
Spellbound

#6D4A4E

Liver color link
Liver

#674C47

Finn color link
Finn

#694554

Half Felix color link
Half Felix

#62534E

Warm Taupe color link
Warm Taupe

#5F514E

Rose Ebony color link
Rose Ebony

#674846

Painite color link
Painite

#6B4947

Wenge color link
Wenge

#645452

Conversions between color systems and etc.

  • HEX#664B4F
  • RGB102, 75, 79
  • CMYK0, 11, 9, 60
  • CSSrgb(102, 75, 79)
  • HSL351°, 15%, 35%
  • HSL Precise351.111°, 15.254%, 34.706%
  • HSV351°, 26%, 40%
  • HSB351°, 26%, 40%
  • Normalized R (0.0–1.0)0.400
  • Normalized G (0.0–1.0)0.294
  • Normalized B (0.0–1.0)0.310
  • GLSLvec3(0.400, 0.294, 0.310)
  • GLSL with alphavec4(0.400, 0.294, 0.310, 1.000)
  • HLSL / Metalfloat3(0.400, 0.294, 0.310)
  • Percentage of Red in RGB40%
  • Percentage of Green in RGB29.4%
  • Percentage of Blue in RGB31%
  • Color FamilyRed
  • Saturation FamilyLow Saturation
  • Lightness FamilyNeutral
  • HEX ID664B4F
  • DECIMAL ID6703951
  • Name LengthThis color has no name
  • Seen by search & AI crawlers18 times
  • Counting from2025-01-01