Information about #666B7E color

#666B7E color image

Basic facts about this digital color

#666B7E falls into the Blue Color Family — Low Saturation, Light brightness. The mix behind it: rgb(102, 107, 126) — 40% red, 42% green, 49.4% blue; the print equivalent is CMYK 9 / 7 / 0 / 51. New to color codes? See our guide to RGB color codes.

A softly toned classic blue, #666B7E feels open and friendly. Designers typically reach for tones like this for versatile mid-ground roles, from cards to secondary buttons. In The Official Register of Color Names it is almost identical to Mist Blue (#646D7E). Its next-closest registered neighbors are Jet Gray (#616D7E) and Sunset-stone-equanimity-natalie (#656A88).

Technically, the mix leans on its blue channel (rgb(102, 107, 126)), which gives #666B7E its character. Accessibility-wise, white text works best on #666B7E: 5.3:1 contrast (passing WCAG AA) versus 4.0:1 for black. #666B7E has no official name yet. If this shade means something to you, you can be the one to name it.

#666B7E color variations

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

#666B7E 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 #666B7E

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

Jet Gray color link
Jet Gray

#616D7E

Infinity color link
Infinity

#6A7376

Dolphin color link
Dolphin

#6A6873

Blue Bayoux color link
Blue Bayoux

#62777E

Raven color link
Raven

#6F747B

Obelisk color link
Obelisk

#617274

Gateway color link
Gateway

#5E7175

Comet color link
Comet

#636373

Quarter Tuna color link
Quarter Tuna

#656A70

Conversions between color systems and etc.

  • HEX#666B7E
  • RGB102, 107, 126
  • CMYK9, 7, 0, 51
  • CSSrgb(102, 107, 126)
  • HSL228°, 11%, 45%
  • HSL Precise227.5°, 10.526%, 44.706%
  • HSV228°, 19%, 49%
  • HSB228°, 19%, 49%
  • Normalized R (0.0–1.0)0.400
  • Normalized G (0.0–1.0)0.420
  • Normalized B (0.0–1.0)0.494
  • GLSLvec3(0.400, 0.420, 0.494)
  • GLSL with alphavec4(0.400, 0.420, 0.494, 1.000)
  • HLSL / Metalfloat3(0.400, 0.420, 0.494)
  • Percentage of Red in RGB40%
  • Percentage of Green in RGB42%
  • Percentage of Blue in RGB49.4%
  • Color FamilyBlue
  • Saturation FamilyLow Saturation
  • Lightness FamilyLight
  • HEX ID666B7E
  • DECIMAL ID6712190
  • Name LengthThis color has no name
  • Seen by search & AI crawlers15 times
  • Counting from2025-01-01