Information about #664B47 color

#664B47 color image

Basic facts about this digital color

The digital color #664B47 is classified in the Register under the Red Color Family, with Low Saturation and Neutral brightness. Its exact recipe is rgb(102, 75, 71) — 40% red, 29.4% green, 27.8% blue — and for print it converts to CMYK 0 / 11 / 12 / 60. New to color codes? See our guide to RGB color codes.

#664B47 presents itself as a softly toned warm red — one that holds a balanced mid-tone. In practice it works well for understated, calm designs that favor harmony over drama. In The Official Register of Color Names it is practically indistinguishable from Liver (#674C47). Its next-closest registered neighbors are Rose Ebony (#674846) and Double Buffalo (#644E46).

Technically, the mix leans on its red channel (rgb(102, 75, 71)), which gives #664B47 its character. If you plan to put text on a #664B47 background, choose white — the contrast ratio is 7.9:1 (passing WCAG AAA), while black manages only 2.7:1. On paper it relies strongly on black ink (K:60), so proof dark layouts before a large print run. No one has named #664B47 so far. Register a name for it and it becomes a permanent record.

#664B47 color variations

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

#664B47 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 #664B47

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

Liver color link
Liver

#674C47

Rose Ebony color link
Rose Ebony

#674846

Painite color link
Painite

#6B4947

Umber color link
Umber

#635147

Galaxy color link
Galaxy

#63464B

Catapult color link
Catapult

#685143

Saddle color link
Saddle

#5D4E46

Spellbound color link
Spellbound

#6D4A4E

Quincy color link
Quincy

#6A5445

Conversions between color systems and etc.

  • HEX#664B47
  • RGB102, 75, 71
  • CMYK0, 11, 12, 60
  • CSSrgb(102, 75, 71)
  • HSL8°, 18%, 34%
  • HSL Precise7.742°, 17.919%, 33.922%
  • HSV8°, 30%, 40%
  • HSB8°, 30%, 40%
  • Normalized R (0.0–1.0)0.400
  • Normalized G (0.0–1.0)0.294
  • Normalized B (0.0–1.0)0.278
  • GLSLvec3(0.400, 0.294, 0.278)
  • GLSL with alphavec4(0.400, 0.294, 0.278, 1.000)
  • HLSL / Metalfloat3(0.400, 0.294, 0.278)
  • Percentage of Red in RGB40%
  • Percentage of Green in RGB29.4%
  • Percentage of Blue in RGB27.8%
  • Color FamilyRed
  • Saturation FamilyLow Saturation
  • Lightness FamilyNeutral
  • HEX ID664B47
  • DECIMAL ID6703943
  • Name LengthThis color has no name
  • Seen by search & AI crawlers21 times
  • Counting from2025-01-01