Information about #21303F color
Basic facts about this digital color
The color #21303F reads as a moderately toned sky-leaning azure and stays on the darker end of the scale. Expect to see shades like this in moody backdrops, typography on light surfaces and premium packaging. In The Official Register of Color Names it is a hair away from Crescendo (#222F44). Slightly further away sit Allegro (#242E3B) and Coast (#243442).
Technically, the mix leans on its blue channel (rgb(33, 48, 63)), which gives #21303F its character. On this background, white text reaches a 13.5:1 contrast ratio (passing WCAG AAA); black stays at 1.6:1. 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, #21303F is still unnamed — it can be claimed and named in The Official Register of Color Names.
#21303F color variations
View this color variations of tints, shades, tones and hues.
#21303F color tints
Tints look brighter, pastel, and less intense.
#21303F color shades
Shades look darker, richer, and more solid.
#21303F color tones
Tones looks more sophisticated and complex than base colors.
#21303F color hues
A hue refers to the basic neighbors of color and is variation of base color on the color wheel.
#21303F 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.
Split complementary
Split complementary schemes are like complementary but they uses two adiacent colors of the complement. They are more flexible than complementary ones.
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.
Triadic
Triadic color schemes are created by picking three colors equally spaced on the color wheel. They appear quite contrasted and multicolored.
Tetradic
Tetradic color schemes are made form two couples of complementary colors in a rectangular shape on the color wheel.
Square
Square color schemes are like tetradic arranged in a square instead of rectangle. Colors appear even more contrasting.
Alternatives to #21303F color
View adjacent and very similar colors.
Nearest named colors to #21303F
The closest officially registered color names in the Register, ordered by similarity — your shade’s neighborhood is already being claimed.
#222F44
#242E3B
#243442
#243640
#272D3C
#202A44
#2A313F
#282B3C
#25383C
#1C2841
#232D36
#173141
#21303F color backgrounds & wallpapers
Download color wallpaper / background for your Desktop PC, Tablet or Mobile phone.
Conversions between color systems and etc.
- HEX#21303F
- RGB33, 48, 63
- CMYK12, 6, 0, 75
- CSSrgb(33, 48, 63)
- HSL210°, 31%, 19%
- HSL Precise210°, 31.25%, 18.824%
- HSV210°, 48%, 25%
- HSB210°, 48%, 25%
- Normalized R (0.0–1.0)0.129
- Normalized G (0.0–1.0)0.188
- Normalized B (0.0–1.0)0.247
- GLSLvec3(0.129, 0.188, 0.247)
- GLSL with alphavec4(0.129, 0.188, 0.247, 1.000)
- HLSL / Metalfloat3(0.129, 0.188, 0.247)
- Percentage of Red in RGB12.9%
- Percentage of Green in RGB18.8%
- Percentage of Blue in RGB24.7%
- Color FamilyAzure
- Saturation FamilyMild Saturation
- Lightness FamilyDark
- HEX ID21303F
- DECIMAL ID2175039
- Name LengthThis color has no name
- This page visited304 times
- Counting from2025-01-01
