Information about #21505F color
Basic facts about this digital color
#21505F is a pleasantly vivid aqua cyan that sits comfortably between light and dark. It is a natural fit for balanced palettes where no single element should shout. In The Official Register of Color Names it is almost identical to Arapawa (#274A5D). Nearby in the Register you will also find Dark Arctic Blue (#275359) and Wanaka (#284962).
Technically, the mix leans on its blue channel (rgb(33, 80, 95)), which gives #21505F its character. On this background, white text reaches a 8.8:1 contrast ratio (passing WCAG AAA); black stays at 2.4:1. For print, note the heavy black component (K:63) — ink coverage matters with tones this deep. Like most of the 16.7 million digital colors, this one is still waiting for a name — naming it takes a minute.
#21505F color variations
View this color variations of tints, shades, tones and hues.
#21505F color tints
Tints look brighter, pastel, and less intense.
#21505F color shades
Shades look darker, richer, and more solid.
#21505F color tones
Tones looks more sophisticated and complex than base colors.
#21505F color hues
A hue refers to the basic neighbors of color and is variation of base color on the color wheel.
#21505F 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 #21505F color
View adjacent and very similar colors.
Nearest named colors to #21505F
The closest officially registered color names in the Register, ordered by similarity — your shade’s neighborhood is already being claimed.
#274A5D
#275359
#284962
#1B5256
#1F4F54
#214559
#2E5060
#29465B
#274B6A
#154C65
#21425F
#304E5E
#21505F color backgrounds & wallpapers
Download color wallpaper / background for your Desktop PC, Tablet or Mobile phone.
Conversions between color systems and etc.
- HEX#21505F
- RGB33, 80, 95
- CMYK24, 6, 0, 63
- CSSrgb(33, 80, 95)
- HSL195°, 48%, 25%
- HSL Precise194.516°, 48.438%, 25.098%
- HSV195°, 65%, 37%
- HSB195°, 65%, 37%
- Normalized R (0.0–1.0)0.129
- Normalized G (0.0–1.0)0.314
- Normalized B (0.0–1.0)0.373
- GLSLvec3(0.129, 0.314, 0.373)
- GLSL with alphavec4(0.129, 0.314, 0.373, 1.000)
- HLSL / Metalfloat3(0.129, 0.314, 0.373)
- Percentage of Red in RGB12.9%
- Percentage of Green in RGB31.4%
- Percentage of Blue in RGB37.3%
- Color FamilyCyan
- Saturation FamilyModerate Saturation
- Lightness FamilyNeutral
- HEX ID21505F
- DECIMAL ID2183263
- Name LengthThis color has no name
- Seen by search & AI crawlers21 times
- Counting from2025-01-01
