Information about #21173F color

#21173F color image

Basic facts about this digital color

The digital color #21173F is classified in the Register under the Violet Color Family, with Moderate Saturation and Dark brightness. In numbers: rgb(33, 23, 63) (12.9% red, 9% green, 24.7% blue), or CMYK 12 / 16 / 0 / 75 for print. Curious how these numbers work? Read our RGB color codes guide.

The color #21173F reads as a clearly saturated twilight violet and leans clearly toward the dark side. 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 very close to Sonic Boom (#252042). Its next-closest registered neighbors are Surfs Up (#1F2142) and Navy Blue Bellflower (#191F45).

The recipe behind #21173F is rgb(33, 23, 63), with blue as the dominant ingredient. If you plan to put text on a #21173F background, choose white — the contrast ratio is 16.7:1 (passing WCAG AAA), while black manages only 1.3:1. For print, note the heavy black component (K:75) — ink coverage matters with tones this deep. No one has named #21173F so far. Register a name for it and it becomes a permanent record.

#21173F color variations

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

#21173F 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 #21173F

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

#21173F color backgrounds & wallpapers

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

Conversions between color systems and etc.

  • HEX#21173F
  • RGB33, 23, 63
  • CMYK12, 16, 0, 75
  • CSSrgb(33, 23, 63)
  • HSL255°, 47%, 17%
  • HSL Precise255°, 46.512%, 16.863%
  • HSV255°, 63%, 25%
  • HSB255°, 63%, 25%
  • Normalized R (0.0–1.0)0.129
  • Normalized G (0.0–1.0)0.090
  • Normalized B (0.0–1.0)0.247
  • GLSLvec3(0.129, 0.090, 0.247)
  • GLSL with alphavec4(0.129, 0.090, 0.247, 1.000)
  • HLSL / Metalfloat3(0.129, 0.090, 0.247)
  • Percentage of Red in RGB12.9%
  • Percentage of Green in RGB9%
  • Percentage of Blue in RGB24.7%
  • Color Family (Hue)Violet
  • Saturation FamilyModerate Saturation
  • Lightness FamilyDark
  • HEX ID21173F
  • DECIMAL ID2168639
  • Name LengthThis color has no name
  • This page visited6 times
  • Counting from2025-01-01