Information about #664E57 color

#664E57 color image

Basic facts about this digital color

The digital color #664E57 is classified in the Register under the Rose Color Family, with Low Saturation and Neutral brightness. Its exact recipe is rgb(102, 78, 87) — 40% red, 30.6% green, 34.1% blue — and for print it converts to CMYK 0 / 9 / 6 / 60. Curious how these numbers work? Read our RGB color codes guide.

A calm, restrained romantic rose, #664E57 holds a balanced mid-tone. Expect to see shades like this in understated, calm designs that favor harmony over drama. In The Official Register of Color Names it is a hair away from Minx (#68535B). Its next-closest registered neighbors are Wenge (#645452) and Quarter Barista (#614F4F).

The recipe behind #664E57 is rgb(102, 78, 87), with red as the dominant ingredient. If you plan to put text on a #664E57 background, choose white — the contrast ratio is 7.5:1 (passing WCAG AAA), while black manages only 2.8:1. 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.

#664E57 color variations

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

#664E57 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 #664E57

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

Minx color link
Minx

#68535B

Wenge color link
Wenge

#645452

Finn color link
Finn

#694554

Cordite color link
Cordite

#6D4658

Half Felix color link
Half Felix

#62534E

Warm Taupe color link
Warm Taupe

#5F514E

Artefact color link
Artefact

#5D5250

Spellbound color link
Spellbound

#6D4A4E

Zambezi color link
Zambezi

#6B5A5A

Don Juan color link
Don Juan

#5A4F51

Conversions between color systems and etc.

  • HEX#664E57
  • RGB102, 78, 87
  • CMYK0, 9, 6, 60
  • CSSrgb(102, 78, 87)
  • HSL338°, 13%, 35%
  • HSL Precise337.5°, 13.333%, 35.294%
  • HSV338°, 24%, 40%
  • HSB338°, 24%, 40%
  • Normalized R (0.0–1.0)0.400
  • Normalized G (0.0–1.0)0.306
  • Normalized B (0.0–1.0)0.341
  • GLSLvec3(0.400, 0.306, 0.341)
  • GLSL with alphavec4(0.400, 0.306, 0.341, 1.000)
  • HLSL / Metalfloat3(0.400, 0.306, 0.341)
  • Percentage of Red in RGB40%
  • Percentage of Green in RGB30.6%
  • Percentage of Blue in RGB34.1%
  • Color FamilyRose
  • Saturation FamilyLow Saturation
  • Lightness FamilyNeutral
  • HEX ID664E57
  • DECIMAL ID6704727
  • Name LengthThis color has no name
  • Seen by search & AI crawlers11 times
  • Counting from2025-01-01