Information about #21213D color

#21213D color image

Basic facts about this digital color

The digital color #21213D is classified in the Register under the Blue Color Family, with Mild Saturation and Dark brightness. Its exact recipe is rgb(33, 33, 61) — 12.9% red, 12.9% green, 23.9% blue — and for print it converts to CMYK 11 / 11 / 0 / 76. Curious how these numbers work? Read our RGB color codes guide.

#21213D presents itself as a softly balanced blue — 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 Surfs Up (#1F2142). Nearby in the Register you will also find Blue Night (#1F263B) and Midnight Express (#21263A).

In RGB terms — rgb(33, 33, 61) — the blue channel does the heavy lifting here. On this background, white text reaches a 15.6:1 contrast ratio (passing WCAG AAA); black stays at 1.3:1. For print, note the heavy black component (K:76) — ink coverage matters with tones this deep. No one has named #21213D so far. Register a name for it and it becomes a permanent record.

#21213D color variations

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

#21213D 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 #21213D

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

#21213D color backgrounds & wallpapers

Download color wallpaper / background for your Desktop PC, Tablet or Mobile phone.

Conversions between color systems and etc.

  • HEX#21213D
  • RGB33, 33, 61
  • CMYK11, 11, 0, 76
  • HSL240°, 30%, 18%
  • HSL Precise240°, 29.787%, 18.431%
  • HSV240°, 46%, 24%
  • HSB240°, 46%, 24%
  • HEX ID21213D
  • DECIMAL ID2171197
  • Name LengthThis color has no name
  • Color Family (Hue)Blue
  • Saturation FamilyMild Saturation
  • Lightness FamilyDark
  • Percentage of Red in RGB12.9%
  • Percentage of Green in RGB12.9%
  • Percentage of Blue in RGB23.9%
  • This page visited6 times
  • Counting from2025-01-01