Information about #641B37 color

#641B37 color image

Basic facts about this digital color

The digital color #641B37 is classified in the Register under the Rose Color Family, with Moderate Saturation and Dark brightness. Its exact recipe is rgb(100, 27, 55) — 39.2% red, 10.6% green, 21.6% blue — and for print it converts to CMYK 0 / 29 / 18 / 61. Curious how these numbers work? Read our RGB color codes guide.

#641B37 presents itself as a pleasantly vivid rose — one that carries a shadowy depth. It is a natural fit for moody backdrops, typography on light surfaces and premium packaging. In The Official Register of Color Names it is practically indistinguishable from Lip Service (#651538). Nearby in the Register you will also find Brown Chocolate (#5F1933) and X Factor (#681B2B).

Technically, the mix leans on its red channel (rgb(100, 27, 55)), which gives #641B37 its character. On this background, white text reaches a 12.0:1 contrast ratio (passing WCAG AAA); black stays at 1.8:1. On paper it relies strongly on black ink (K:61), so proof dark layouts before a large print run. Like most of the 16.7 million digital colors, this one is still waiting for a name — naming it takes a minute.

#641B37 color variations

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

#641B37 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 #641B37

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

Lip Service color link
Lip Service

#651538

X Factor color link
X Factor

#681B2B

Breakfree color link
Breakfree

#65192A

Vanquish color link
Vanquish

#63272F

Pompadour color link
Pompadour

#6A1F44

Siren color link
Siren

#69293B

Hot Wired color link
Hot Wired

#6F2637

Monarch color link
Monarch

#6B252C

Pohutukawa color link
Pohutukawa

#651C26

Livewire color link
Livewire

#6D1C27

Conversions between color systems and etc.

  • HEX#641B37
  • RGB100, 27, 55
  • CMYK0, 29, 18, 61
  • CSSrgb(100, 27, 55)
  • HSL337°, 57%, 25%
  • HSL Precise336.986°, 57.48%, 24.902%
  • HSV337°, 73%, 39%
  • HSB337°, 73%, 39%
  • Normalized R (0.0–1.0)0.392
  • Normalized G (0.0–1.0)0.106
  • Normalized B (0.0–1.0)0.216
  • GLSLvec3(0.392, 0.106, 0.216)
  • GLSL with alphavec4(0.392, 0.106, 0.216, 1.000)
  • HLSL / Metalfloat3(0.392, 0.106, 0.216)
  • Percentage of Red in RGB39.2%
  • Percentage of Green in RGB10.6%
  • Percentage of Blue in RGB21.6%
  • Color FamilyRose
  • Saturation FamilyModerate Saturation
  • Lightness FamilyDark
  • HEX ID641B37
  • DECIMAL ID6560567
  • Name LengthThis color has no name
  • Seen by search & AI crawlers17 times
  • Counting from2025-01-01