Information about #66647F color

#66647F color image

Basic facts about this digital color

The digital color #66647F is classified in the Register under the Blue Color Family, with Low Saturation and Light brightness. Its exact recipe is rgb(102, 100, 127) — 40% red, 39.2% green, 49.8% blue — and for print it converts to CMYK 10 / 11 / 0 / 50. New to color codes? See our guide to RGB color codes.

#66647F presents itself as a softly toned classic blue — one that feels open and friendly. 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 Mist Blue (#646D7E). Its next-closest registered neighbors are High Society (#695B7C) and Jet Gray (#616D7E).

Technically, the mix leans on its blue channel (rgb(102, 100, 127)), which gives #66647F its character. If you plan to put text on a #66647F background, choose white — the contrast ratio is 5.7:1 (passing WCAG AA), while black manages only 3.7:1. No one has named #66647F so far. Register a name for it and it becomes a permanent record.

#66647F color variations

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

#66647F 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 #66647F

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

Mist Blue color link
Mist Blue

#646D7E

High Society color link
High Society

#695B7C

Jet Gray color link
Jet Gray

#616D7E

Kimberly color link
Kimberly

#695D87

Comet color link
Comet

#636373

Dolphin color link
Dolphin

#6A6873

Covert color link
Covert

#645977

Rum color link
Rum

#716675

Centaurian color link
Centaurian

#6E5977

Quarter Tuna color link
Quarter Tuna

#656A70

Conversions between color systems and etc.

  • HEX#66647F
  • RGB102, 100, 127
  • CMYK10, 11, 0, 50
  • CSSrgb(102, 100, 127)
  • HSL244°, 12%, 45%
  • HSL Precise244.444°, 11.894%, 44.51%
  • HSV244°, 21%, 50%
  • HSB244°, 21%, 50%
  • Normalized R (0.0–1.0)0.400
  • Normalized G (0.0–1.0)0.392
  • Normalized B (0.0–1.0)0.498
  • GLSLvec3(0.400, 0.392, 0.498)
  • GLSL with alphavec4(0.400, 0.392, 0.498, 1.000)
  • HLSL / Metalfloat3(0.400, 0.392, 0.498)
  • Percentage of Red in RGB40%
  • Percentage of Green in RGB39.2%
  • Percentage of Blue in RGB49.8%
  • Color FamilyBlue
  • Saturation FamilyLow Saturation
  • Lightness FamilyLight
  • HEX ID66647F
  • DECIMAL ID6710399
  • Name LengthThis color has no name
  • Seen by search & AI crawlers13 times
  • Counting from2025-01-01