Information about #400D21 color

#400D21 color image

Basic facts about this digital color

In the Register's classification, #400D21 belongs to the Rose Color Family, featuring High Saturation and Dark brightness. The mix behind it: rgb(64, 13, 33) — 25.1% red, 5.1% green, 12.9% blue; the print equivalent is CMYK 0 / 20 / 12 / 75. Curious how these numbers work? Read our RGB color codes guide.

The color #400D21 reads as a vivid, lively rose and carries a shadowy depth. Expect to see shades like this in night-mode interfaces and high-contrast pairings with light text. In The Official Register of Color Names it is almost identical to Chocolate Kisses (#3C1421). Nearby in the Register you will also find Ravishing (#401A22) and Toledo (#3A0020).

Technically, the mix leans on its red channel (rgb(64, 13, 33)), which gives #400D21 its character. If you plan to put text on a #400D21 background, choose white — the contrast ratio is 16.2:1 (passing WCAG AAA), while black manages only 1.3:1. On paper it relies strongly on black ink (K:75), so proof dark layouts before a large print run. Out of 16,777,216 possible colors, #400D21 is still unnamed — it can be claimed and named in The Official Register of Color Names.

#400D21 color variations

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

#400D21 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 #400D21

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

Ravishing color link
Ravishing

#401A22

Toledo color link
Toledo

#3A0020

Spitfire color link
Spitfire

#381921

Dark Sienna color link
Dark Sienna

#3C1414

Dark Plum color link
Dark Plum

#3F012C

Cocoa Bean color link
Cocoa Bean

#481C1C

Blackberry color link
Blackberry

#43182F

Vandalista color link
Vandalista

#310C16

Tamarind color link
Tamarind

#341515

Jumpstart color link
Jumpstart

#3E2025

Mayhem color link
Mayhem

#4D1B25

Conversions between color systems and etc.

  • HEX#400D21
  • RGB64, 13, 33
  • CMYK0, 20, 12, 75
  • CSSrgb(64, 13, 33)
  • HSL336°, 66%, 15%
  • HSL Precise336.471°, 66.234%, 15.098%
  • HSV336°, 80%, 25%
  • HSB336°, 80%, 25%
  • Normalized R (0.0–1.0)0.251
  • Normalized G (0.0–1.0)0.051
  • Normalized B (0.0–1.0)0.129
  • GLSLvec3(0.251, 0.051, 0.129)
  • GLSL with alphavec4(0.251, 0.051, 0.129, 1.000)
  • HLSL / Metalfloat3(0.251, 0.051, 0.129)
  • Percentage of Red in RGB25.1%
  • Percentage of Green in RGB5.1%
  • Percentage of Blue in RGB12.9%
  • Color FamilyRose
  • Saturation FamilyHigh Saturation
  • Lightness FamilyDark
  • HEX ID400D21
  • DECIMAL ID4197665
  • Name LengthThis color has no name
  • Seen by search & AI crawlers15 times
  • Counting from2025-01-01