Information about #21006E color

#21006E color image

Basic facts about this digital color

#21006E falls into the Violet Color Family — Full Saturation, Dark brightness. Its exact recipe is rgb(33, 0, 110) — 12.9% red, 0% green, 43.1% blue — and for print it converts to CMYK 30 / 43 / 0 / 57. Curious how these numbers work? Read our RGB color codes guide.

The color #21006E reads as a maximally vivid twilight violet and leans clearly toward the dark side. Expect to see shades like this in dark UI themes, backgrounds and dramatic accents. In The Official Register of Color Names it is a near neighbor of Royal Navy (#1A0076). Its next-closest registered neighbors are ACE Blue (#290177) and PHCH (#201173).

In RGB terms — rgb(33, 0, 110) — the blue channel does the heavy lifting here. Accessibility-wise, white text works best on #21006E: 16.3:1 contrast (passing WCAG AAA) versus 1.3:1 for black. Out of 16,777,216 possible colors, #21006E is still unnamed — it can be claimed and named in The Official Register of Color Names.

#21006E color variations

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

#21006E 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 #21006E

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

Royal Navy color link
Royal Navy

#1A0076

ACE Blue color link
ACE Blue

#290177

PHCH color link
PHCH

#201173

Christalle color link
Christalle

#33036B

Deep Violet color link
Deep Violet

#330066

Suns Purple color link
Suns Purple

#1D1160

Deep Indigo color link
Deep Indigo

#160059

Dark Indigo color link
Dark Indigo

#1F0954

Conversions between color systems and etc.

  • HEX#21006E
  • RGB33, 0, 110
  • CMYK30, 43, 0, 57
  • CSSrgb(33, 0, 110)
  • HSL258°, 100%, 22%
  • HSL Precise258°, 100%, 21.569%
  • HSV258°, 100%, 43%
  • HSB258°, 100%, 43%
  • Normalized R (0.0–1.0)0.129
  • Normalized G (0.0–1.0)0.000
  • Normalized B (0.0–1.0)0.431
  • GLSLvec3(0.129, 0.000, 0.431)
  • GLSL with alphavec4(0.129, 0.000, 0.431, 1.000)
  • HLSL / Metalfloat3(0.129, 0.000, 0.431)
  • Percentage of Red in RGB12.9%
  • Percentage of Green in RGB0%
  • Percentage of Blue in RGB43.1%
  • Color FamilyViolet
  • Saturation FamilyFull Saturation
  • Lightness FamilyDark
  • HEX ID21006E
  • DECIMAL ID2162798
  • Name LengthThis color has no name
  • Seen by search & AI crawlers25 times
  • Counting from2025-01-01