Information about #660A10 color

#660A10 color image

Basic facts about this digital color

In the Register's classification, #660A10 belongs to the Red Color Family, featuring High Saturation and Dark brightness. The mix behind it: rgb(102, 10, 16) — 40% red, 3.9% green, 6.3% blue; the print equivalent is CMYK 0 / 36 / 34 / 60. Curious how these numbers work? Read our RGB color codes guide.

The color #660A10 reads as a strongly colored warm red and leans clearly toward the dark side. Expect to see shades like this in dark UI themes, backgrounds and dramatic accents. In The Official Register of Color Names it is almost identical to Royal Maroon (#670E10). Its next-closest registered neighbors are Vintage Burgundy (#5F0609) and Rosewood (#65000B).

Technically, the mix leans on its red channel (rgb(102, 10, 16)), which gives #660A10 its character. Accessibility-wise, white text works best on #660A10: 13.0:1 contrast (passing WCAG AAA) versus 1.6:1 for black. On paper it relies strongly on black ink (K:60), so proof dark layouts before a large print run. #660A10 has no official name yet. If this shade means something to you, you can be the one to name it.

#660A10 color variations

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

#660A10 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 #660A10

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

Conversions between color systems and etc.

  • HEX#660A10
  • RGB102, 10, 16
  • CMYK0, 36, 34, 60
  • CSSrgb(102, 10, 16)
  • HSL356°, 82%, 22%
  • HSL Precise356.087°, 82.143%, 21.961%
  • HSV356°, 90%, 40%
  • HSB356°, 90%, 40%
  • Normalized R (0.0–1.0)0.400
  • Normalized G (0.0–1.0)0.039
  • Normalized B (0.0–1.0)0.063
  • GLSLvec3(0.400, 0.039, 0.063)
  • GLSL with alphavec4(0.400, 0.039, 0.063, 1.000)
  • HLSL / Metalfloat3(0.400, 0.039, 0.063)
  • Percentage of Red in RGB40%
  • Percentage of Green in RGB3.9%
  • Percentage of Blue in RGB6.3%
  • Color FamilyRed
  • Saturation FamilyHigh Saturation
  • Lightness FamilyDark
  • HEX ID660A10
  • DECIMAL ID6687248
  • Name LengthThis color has no name
  • Seen by search & AI crawlers15 times
  • Counting from2025-01-01