Information about #40391D color

#40391D color image

Basic facts about this digital color

In the Register's classification, #40391D belongs to the Yellow Color Family, featuring Mild Saturation and Dark brightness. The mix behind it: rgb(64, 57, 29) — 25.1% red, 22.4% green, 11.4% blue; the print equivalent is CMYK 0 / 3 / 14 / 75. New to color codes? See our guide to RGB color codes.

The color #40391D reads as a mildly saturated yellow and stays on the darker end of the scale. 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 Lisbon Brown (#423921). Slightly further away sit Longbush (#413922) and Thatch Green (#403D19).

In RGB terms — rgb(64, 57, 29) — the red channel does the heavy lifting here. Accessibility-wise, white text works best on #40391D: 11.5:1 contrast (passing WCAG AAA) versus 1.8:1 for black. On paper it relies strongly on black ink (K:75), so proof dark layouts before a large print run. No one has named #40391D so far. Register a name for it and it becomes a permanent record.

#40391D color variations

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

#40391D 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 #40391D

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

Lisbon Brown color link
Lisbon Brown

#423921

Longbush color link
Longbush

#413922

Thatch Green color link
Thatch Green

#403D19

Mikado color link
Mikado

#3F3623

Iroko color link
Iroko

#433120

Birch color link
Birch

#3F3726

Madras color link
Madras

#473E23

Jacko Bean color link
Jacko Bean

#413628

Cola color link
Cola

#3C3024

Cafe Noir color link
Cafe Noir

#4B3621

Conversions between color systems and etc.

  • HEX#40391D
  • RGB64, 57, 29
  • CMYK0, 3, 14, 75
  • CSSrgb(64, 57, 29)
  • HSL48°, 38%, 18%
  • HSL Precise48°, 37.634%, 18.235%
  • HSV48°, 55%, 25%
  • HSB48°, 55%, 25%
  • Normalized R (0.0–1.0)0.251
  • Normalized G (0.0–1.0)0.224
  • Normalized B (0.0–1.0)0.114
  • GLSLvec3(0.251, 0.224, 0.114)
  • GLSL with alphavec4(0.251, 0.224, 0.114, 1.000)
  • HLSL / Metalfloat3(0.251, 0.224, 0.114)
  • Percentage of Red in RGB25.1%
  • Percentage of Green in RGB22.4%
  • Percentage of Blue in RGB11.4%
  • Color FamilyYellow
  • Saturation FamilyMild Saturation
  • Lightness FamilyDark
  • HEX ID40391D
  • DECIMAL ID4208925
  • Name LengthThis color has no name
  • Seen by search & AI crawlers9 times
  • Counting from2025-01-01