Information about #21253A color
Basic facts about this digital color
A moderately toned classic blue, #21253A 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 a hair away from Midnight Express (#21263A). Its next-closest registered neighbors are Blue Night (#1F263B) and Ebony Clay (#26283B).
The recipe behind #21253A is rgb(33, 37, 58), with blue as the dominant ingredient. If you plan to put text on a #21253A background, choose white — the contrast ratio is 15.1:1 (passing WCAG AAA), while black manages only 1.4:1. On paper it relies strongly on black ink (K:77), so proof dark layouts before a large print run. No one has named #21253A so far. Register a name for it and it becomes a permanent record.
#21253A color variations
View this color variations of tints, shades, tones and hues.
#21253A color tints
Tints look brighter, pastel, and less intense.
#21253A color shades
Shades look darker, richer, and more solid.
#21253A color tones
Tones looks more sophisticated and complex than base colors.
#21253A color hues
A hue refers to the basic neighbors of color and is variation of base color on the color wheel.
#21253A 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 #21253A color
View adjacent and very similar colors.
Nearest named colors to #21253A
The closest officially registered color names in the Register, ordered by similarity — your shade’s neighborhood is already being claimed.
#21263A
#1F263B
#26283B
#27253C
#1D2134
#232732
#1C2841
#1F2142
#232D36
#282B3C
#242E3B
#272D3C
#21253A color backgrounds & wallpapers
Download color wallpaper / background for your Desktop PC, Tablet or Mobile phone.
Conversions between color systems and etc.
- HEX#21253A
- RGB33, 37, 58
- CMYK10, 8, 0, 77
- CSSrgb(33, 37, 58)
- HSL230°, 27%, 18%
- HSL Precise230.4°, 27.473%, 17.843%
- HSV230°, 43%, 23%
- HSB230°, 43%, 23%
- Normalized R (0.0–1.0)0.129
- Normalized G (0.0–1.0)0.145
- Normalized B (0.0–1.0)0.227
- GLSLvec3(0.129, 0.145, 0.227)
- GLSL with alphavec4(0.129, 0.145, 0.227, 1.000)
- HLSL / Metalfloat3(0.129, 0.145, 0.227)
- Percentage of Red in RGB12.9%
- Percentage of Green in RGB14.5%
- Percentage of Blue in RGB22.7%
- Color FamilyBlue
- Saturation FamilyMild Saturation
- Lightness FamilyDark
- HEX ID21253A
- DECIMAL ID2172218
- Name LengthThis color has no name
- Seen by search & AI crawlers25 times
- Counting from2025-01-01
