Information about #643C1B color

#643C1B color image

Basic facts about this digital color

The digital color #643C1B is classified in the Register under the Orange Color Family, with Moderate Saturation and Dark brightness. Its exact recipe is rgb(100, 60, 27) — 39.2% red, 23.5% green, 10.6% blue — and for print it converts to CMYK 0 / 16 / 29 / 61. New to color codes? See our guide to RGB color codes.

#643C1B presents itself as a pleasantly vivid orange — one that stays on the darker end of the scale. In practice it works well for moody backdrops, typography on light surfaces and premium packaging. In The Official Register of Color Names it is practically indistinguishable from Earthtone (#5D3A1A). Slightly further away sit Dark Brown (#654321) and Royal Mahogany (#653420).

In RGB terms — rgb(100, 60, 27) — the red channel does the heavy lifting here. On this background, white text reaches a 9.5:1 contrast ratio (passing WCAG AAA); black stays at 2.2:1. On paper it relies strongly on black ink (K:61), so proof dark layouts before a large print run. #643C1B has no official name yet. If this shade means something to you, you can be the one to name it.

#643C1B color variations

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

#643C1B 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 #643C1B

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

Earthtone color link
Earthtone

#5D3A1A

Dark Brown color link
Dark Brown

#654321

New Amber color link
New Amber

#6D3B24

Carnaby Tan color link
Carnaby Tan

#5B3A24

Kobicha color link
Kobicha

#6B4423

Hairy Heath color link
Hairy Heath

#633528

Bracken color link
Bracken

#5B3D27

Deep Ochre color link
Deep Ochre

#733D1A

Sepia color link
Sepia

#704214

Conversions between color systems and etc.

  • HEX#643C1B
  • RGB100, 60, 27
  • CMYK0, 16, 29, 61
  • CSSrgb(100, 60, 27)
  • HSL27°, 57%, 25%
  • HSL Precise27.123°, 57.48%, 24.902%
  • HSV27°, 73%, 39%
  • HSB27°, 73%, 39%
  • Normalized R (0.0–1.0)0.392
  • Normalized G (0.0–1.0)0.235
  • Normalized B (0.0–1.0)0.106
  • GLSLvec3(0.392, 0.235, 0.106)
  • GLSL with alphavec4(0.392, 0.235, 0.106, 1.000)
  • HLSL / Metalfloat3(0.392, 0.235, 0.106)
  • Percentage of Red in RGB39.2%
  • Percentage of Green in RGB23.5%
  • Percentage of Blue in RGB10.6%
  • Color FamilyOrange
  • Saturation FamilyModerate Saturation
  • Lightness FamilyDark
  • HEX ID643C1B
  • DECIMAL ID6568987
  • Name LengthThis color has no name
  • Seen by search & AI crawlers24 times
  • Counting from2025-01-01