Information about #666CAC color

#666CAC color image

Basic facts about this digital color

The digital color #666CAC is classified in the Register under the Blue Color Family, with Mild Saturation and Light brightness. In numbers: rgb(102, 108, 172) (40% red, 42.4% green, 67.5% blue), or CMYK 27 / 25 / 0 / 33 for print. New to color codes? See our guide to RGB color codes.

#666CAC is a softly balanced blue that sits on the lighter side of the spectrum. In practice it works well for understated, calm designs that favor harmony over drama. In The Official Register of Color Names it is almost identical to Chetwode Blue (#666FB4). Nearby in the Register you will also find Deloras (#606AA1) and Grizzlies Blue (#5D76A9).

In RGB terms — rgb(102, 108, 172) — the blue channel does the heavy lifting here. If you plan to put text on a #666CAC background, choose white — the contrast ratio is 4.9:1 (passing WCAG AA), while black manages only 4.3:1. #666CAC has no official name yet. If this shade means something to you, you can be the one to name it.

#666CAC color variations

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

#666CAC 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 #666CAC

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

Deloras color link
Deloras

#606AA1

Scampi color link
Scampi

#6F63A0

Deluge color link
Deluge

#7563A8

Anchor color link
Anchor

#526DB2

Blue Yonder color link
Blue Yonder

#5072A7

Panorama color link
Panorama

#597499

Toolbox color link
Toolbox

#746CC0

Conversions between color systems and etc.

  • HEX#666CAC
  • RGB102, 108, 172
  • CMYK27, 25, 0, 33
  • CSSrgb(102, 108, 172)
  • HSL235°, 30%, 54%
  • HSL Precise234.857°, 29.661%, 53.725%
  • HSV235°, 41%, 67%
  • HSB235°, 41%, 67%
  • Normalized R (0.0–1.0)0.400
  • Normalized G (0.0–1.0)0.424
  • Normalized B (0.0–1.0)0.675
  • GLSLvec3(0.400, 0.424, 0.675)
  • GLSL with alphavec4(0.400, 0.424, 0.675, 1.000)
  • HLSL / Metalfloat3(0.400, 0.424, 0.675)
  • Percentage of Red in RGB40%
  • Percentage of Green in RGB42.4%
  • Percentage of Blue in RGB67.5%
  • Color FamilyBlue
  • Saturation FamilyMild Saturation
  • Lightness FamilyLight
  • HEX ID666CAC
  • DECIMAL ID6712492
  • Name LengthThis color has no name
  • Seen by search & AI crawlers14 times
  • Counting from2025-01-01