Information about #21282B color

#21282B color image

Basic facts about this digital color

In the Register's classification, #21282B belongs to the Azure Color Family, featuring Low Saturation and Dark brightness. The mix behind it: rgb(33, 40, 43) — 12.9% red, 15.7% green, 16.9% blue; the print equivalent is CMYK 4 / 1 / 0 / 83. New to color codes? See our guide to RGB color codes.

The color #21282B reads as a softly toned sky-leaning azure and leans clearly toward the dark side. 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 Dark Gunmetal (#1F262A). Its next-closest registered neighbors are Black Pearl (#1E272C) and Charleston Green (#232B2B).

The recipe behind #21282B is rgb(33, 40, 43), with blue as the dominant ingredient. Accessibility-wise, white text works best on #21282B: 15.0:1 contrast (passing WCAG AAA) versus 1.4:1 for black. On paper it relies strongly on black ink (K:83), so proof dark layouts before a large print run. #21282B has no official name yet. If this shade means something to you, you can be the one to name it.

#21282B color variations

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

#21282B 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 #21282B

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

Black Pearl color link
Black Pearl

#1E272C

Cinder color link
Cinder

#242A2E

Shadowland color link
Shadowland

#26272C

Kermadec color link
Kermadec

#1D2C2A

Sentry color link
Sentry

#1C2728

Wine Trail color link
Wine Trail

#27292D

Daytona color link
Daytona

#1E222C

Indian Ink color link
Indian Ink

#232732

#21282B color backgrounds & wallpapers

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

Conversions between color systems and etc.

  • HEX#21282B
  • RGB33, 40, 43
  • CMYK4, 1, 0, 83
  • HSL198°, 13%, 15%
  • HSL Precise198°, 13.158%, 14.902%
  • HSV198°, 23%, 17%
  • HSB198°, 23%, 17%
  • HEX ID21282B
  • DECIMAL ID2172971
  • Name LengthThis color has no name
  • Color Family (Hue)Azure
  • Saturation FamilyLow Saturation
  • Lightness FamilyDark
  • Percentage of Red in RGB12.9%
  • Percentage of Green in RGB15.7%
  • Percentage of Blue in RGB16.9%
  • This page visited6 times
  • Counting from2025-01-01