Information about #A6391B color

#A6391B color image

Basic facts about this digital color

The digital color #A6391B is classified in the Register under the Red Color Family, with High Saturation and Neutral brightness. Its exact recipe is rgb(166, 57, 27) — 65.1% red, 22.4% green, 10.6% blue — and for print it converts to CMYK 0 / 43 / 55 / 35. Curious how these numbers work? Read our RGB color codes guide.

#A6391B presents itself as a energetic, saturated red — one that holds a balanced mid-tone. It is a natural fit for bold branding moments and attention-grabbing details. In The Official Register of Color Names it is practically indistinguishable from Chinese Red (#AA381E). Its next-closest registered neighbors are Chinese Brown (#AB381F) and Brick (#A03623).

Technically, the mix leans on its red channel (rgb(166, 57, 27)), which gives #A6391B its character. If you plan to put text on a #A6391B background, choose white — the contrast ratio is 6.5:1 (passing WCAG AA), while black manages only 3.2:1. Like most of the 16.7 million digital colors, this one is still waiting for a name — naming it takes a minute.

#A6391B color variations

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

#A6391B 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 #A6391B

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

Chinese Red color link
Chinese Red

#AA381E

Brick color link
Brick

#A03623

Rustic Coral color link
Rustic Coral

#AE3415

Brownish Red color link
Brownish Red

#9E3623

Ayers Rock color link
Ayers Rock

#AE451D

Rusty Brown color link
Rusty Brown

#9E3C0E

Bonfire color link
Bonfire

#A62A20

Red Birch color link
Red Birch

#9D2B22

Metallic Red color link
Metallic Red

#A62C2B

Conversions between color systems and etc.

  • HEX#A6391B
  • RGB166, 57, 27
  • CMYK0, 43, 55, 35
  • CSSrgb(166, 57, 27)
  • HSL13°, 72%, 38%
  • HSL Precise12.95°, 72.021%, 37.843%
  • HSV13°, 84%, 65%
  • HSB13°, 84%, 65%
  • Normalized R (0.0–1.0)0.651
  • Normalized G (0.0–1.0)0.224
  • Normalized B (0.0–1.0)0.106
  • GLSLvec3(0.651, 0.224, 0.106)
  • GLSL with alphavec4(0.651, 0.224, 0.106, 1.000)
  • HLSL / Metalfloat3(0.651, 0.224, 0.106)
  • Percentage of Red in RGB65.1%
  • Percentage of Green in RGB22.4%
  • Percentage of Blue in RGB10.6%
  • Color FamilyRed
  • Saturation FamilyHigh Saturation
  • Lightness FamilyNeutral
  • HEX IDA6391B
  • DECIMAL ID10893595
  • Name LengthThis color has no name
  • Seen by search & AI crawlers15 times
  • Counting from2025-01-01