Information about #666C5E color

#666C5E color image

Basic facts about this digital color

In the Register's classification, #666C5E belongs to the Chartreuse Color Family, featuring Desaturated and Neutral brightness. The mix behind it: rgb(102, 108, 94) — 40% red, 42.4% green, 36.9% blue; the print equivalent is CMYK 2 / 0 / 5 / 58. Curious how these numbers work? Read our RGB color codes guide.

The color #666C5E reads as a quiet, subdued balanced grey tone and holds a balanced mid-tone. Expect to see shades like this in versatile mid-ground roles, from cards to secondary buttons. In The Official Register of Color Names it is almost identical to Double Tapa (#6A6A5F). Its next-closest registered neighbors are Triple Stack (#656660) and Chain Reaction (#6C695A).

In RGB terms — rgb(102, 108, 94) — the green channel does the heavy lifting here. Accessibility-wise, white text works best on #666C5E: 5.4:1 contrast (passing WCAG AA) versus 3.9:1 for black. Out of 16,777,216 possible colors, #666C5E is still unnamed — it can be claimed and named in The Official Register of Color Names.

#666C5E color variations

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

#666C5E 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 #666C5E

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

Double Tapa color link
Double Tapa

#6A6A5F

Triple Stack color link
Triple Stack

#656660

Climate color link
Climate

#6E6D5E

Chicane color link
Chicane

#686765

Half Masala color link
Half Masala

#67635C

Paddock color link
Paddock

#667156

Storm Dust color link
Storm Dust

#646463

Willow Grove color link
Willow Grove

#69755C

Port Phillip color link
Port Phillip

#647464

Conversions between color systems and etc.

  • HEX#666C5E
  • RGB102, 108, 94
  • CMYK2, 0, 5, 58
  • CSSrgb(102, 108, 94)
  • HSL86°, 7%, 40%
  • HSL Precise85.714°, 6.931%, 39.608%
  • HSV86°, 13%, 42%
  • HSB86°, 13%, 42%
  • Normalized R (0.0–1.0)0.400
  • Normalized G (0.0–1.0)0.424
  • Normalized B (0.0–1.0)0.369
  • GLSLvec3(0.400, 0.424, 0.369)
  • GLSL with alphavec4(0.400, 0.424, 0.369, 1.000)
  • HLSL / Metalfloat3(0.400, 0.424, 0.369)
  • Percentage of Red in RGB40%
  • Percentage of Green in RGB42.4%
  • Percentage of Blue in RGB36.9%
  • Color FamilyChartreuse
  • Saturation FamilyDesaturated
  • Lightness FamilyNeutral
  • HEX ID666C5E
  • DECIMAL ID6712414
  • Name LengthThis color has no name
  • Seen by search & AI crawlers24 times
  • Counting from2025-01-01