Information about #66181F color

#66181F color image

Basic facts about this digital color

#66181F falls into the Red Color Family — High Saturation, Dark brightness. The mix behind it: rgb(102, 24, 31) — 40% red, 9.4% green, 12.2% blue; the print equivalent is CMYK 0 / 31 / 28 / 60. New to color codes? See our guide to RGB color codes.

A strongly colored earthy red, #66181F leans clearly toward the dark side. Designers typically reach for tones like this for dark UI themes, backgrounds and dramatic accents. In The Official Register of Color Names it is almost identical to Vintage Maroon (#621D1D). Its next-closest registered neighbors are Pohutukawa (#651C26) and Luxury Burgundy (#641226).

In RGB terms — rgb(102, 24, 31) — the red channel does the heavy lifting here. Accessibility-wise, white text works best on #66181F: 12.2:1 contrast (passing WCAG AAA) versus 1.7:1 for black. For print, note the heavy black component (K:60) — ink coverage matters with tones this deep. #66181F has no official name yet. If this shade means something to you, you can be the one to name it.

#66181F color variations

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

#66181F 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 #66181F

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

Pohutukawa color link
Pohutukawa

#651C26

Breakfree color link
Breakfree

#65192A

Persian Plum color link
Persian Plum

#701C1C

Livewire color link
Livewire

#6D1C27

Rata color link
Rata

#5D1F1E

Hot N Spicy color link
Hot N Spicy

#6B2320

Pomegranate color link
Pomegranate

#660C21

Red Bean color link
Red Bean

#672422

X Factor color link
X Factor

#681B2B

Conversions between color systems and etc.

  • HEX#66181F
  • RGB102, 24, 31
  • CMYK0, 31, 28, 60
  • CSSrgb(102, 24, 31)
  • HSL355°, 62%, 25%
  • HSL Precise354.615°, 61.905%, 24.706%
  • HSV355°, 76%, 40%
  • HSB355°, 76%, 40%
  • Normalized R (0.0–1.0)0.400
  • Normalized G (0.0–1.0)0.094
  • Normalized B (0.0–1.0)0.122
  • GLSLvec3(0.400, 0.094, 0.122)
  • GLSL with alphavec4(0.400, 0.094, 0.122, 1.000)
  • HLSL / Metalfloat3(0.400, 0.094, 0.122)
  • Percentage of Red in RGB40%
  • Percentage of Green in RGB9.4%
  • Percentage of Blue in RGB12.2%
  • Color FamilyRed
  • Saturation FamilyHigh Saturation
  • Lightness FamilyDark
  • HEX ID66181F
  • DECIMAL ID6690847
  • Name LengthThis color has no name
  • Seen by search & AI crawlers14 times
  • Counting from2025-01-01