Information about #40373A color

#40373A color image

Basic facts about this digital color

The digital color #40373A is classified in the Register under the Rose Color Family, with Desaturated and Dark brightness. In numbers: rgb(64, 55, 58) (25.1% red, 21.6% green, 22.7% blue), or CMYK 0 / 4 / 2 / 75 for print. New to color codes? See our guide to RGB color codes.

The color #40373A reads as a quiet, subdued grey and leans clearly toward the dark side. Designers typically reach for tones like this for night-mode interfaces and high-contrast pairings with light text. In The Official Register of Color Names it is practically indistinguishable from Black Cat (#413839). Its next-closest registered neighbors are Xumo (#413639) and Eclipse (#3F3939).

Technically, the mix leans on its red channel (rgb(64, 55, 58)), which gives #40373A its character. If you plan to put text on a #40373A background, choose white — the contrast ratio is 11.5:1 (passing WCAG AAA), while black manages only 1.8:1. For print, note the heavy black component (K:75) — ink coverage matters with tones this deep. Like most of the 16.7 million digital colors, this one is still waiting for a name — naming it takes a minute.

#40373A color variations

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

#40373A 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 #40373A

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

Black Cat color link
Black Cat

#413839

Xumo color link
Xumo

#413639

Eclipse color link
Eclipse

#3F3939

Black Sheep color link
Black Sheep

#3E393A

Horoscope color link
Horoscope

#43373A

Urban Legend color link
Urban Legend

#42333A

Rockstar color link
Rockstar

#3D3A3C

Afficionado color link
Afficionado

#453638

Iridium color link
Iridium

#3D3C3A

Barista color link
Barista

#453837

Conversions between color systems and etc.

  • HEX#40373A
  • RGB64, 55, 58
  • CMYK0, 4, 2, 75
  • CSSrgb(64, 55, 58)
  • HSL340°, 8%, 23%
  • HSL Precise340°, 7.563%, 23.333%
  • HSV340°, 14%, 25%
  • HSB340°, 14%, 25%
  • Normalized R (0.0–1.0)0.251
  • Normalized G (0.0–1.0)0.216
  • Normalized B (0.0–1.0)0.227
  • GLSLvec3(0.251, 0.216, 0.227)
  • GLSL with alphavec4(0.251, 0.216, 0.227, 1.000)
  • HLSL / Metalfloat3(0.251, 0.216, 0.227)
  • Percentage of Red in RGB25.1%
  • Percentage of Green in RGB21.6%
  • Percentage of Blue in RGB22.7%
  • Color FamilyRose
  • Saturation FamilyDesaturated
  • Lightness FamilyDark
  • HEX ID40373A
  • DECIMAL ID4208442
  • Name LengthThis color has no name
  • Seen by search & AI crawlers31 times
  • Counting from2025-01-01