Information about #28333B color
Basic facts about this digital color
A gently muted azure, #28333B carries a shadowy depth. 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 practically indistinguishable from Gunmetal (#2A3439). Nearby in the Register you will also find Blueprint (#2A313F) and Dark Slate Grey (#25383C).
Technically, the mix leans on its blue channel (rgb(40, 51, 59)), which gives #28333B its character. If you plan to put text on a #28333B background, choose white — the contrast ratio is 12.9:1 (passing WCAG AAA), while black manages only 1.6:1. On paper it relies strongly on black ink (K:77), so proof dark layouts before a large print run. Out of 16,777,216 possible colors, #28333B is still unnamed — it can be claimed and named in The Official Register of Color Names.
#28333B color variations
View this color variations of tints, shades, tones and hues.
#28333B color tints
Tints look brighter, pastel, and less intense.
#28333B color shades
Shades look darker, richer, and more solid.
#28333B color tones
Tones looks more sophisticated and complex than base colors.
#28333B color hues
A hue refers to the basic neighbors of color and is variation of base color on the color wheel.
#28333B 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 #28333B color
View adjacent and very similar colors.
Nearest named colors to #28333B
The closest officially registered color names in the Register, ordered by similarity — your shade’s neighborhood is already being claimed.
#2A3439
#2A313F
#25383C
#272D3C
#2A3335
#242E3B
#243640
#2B3736
#293741
#2C2D3C
#282B3C
#243442
#28333B color backgrounds & wallpapers
Download color wallpaper / background for your Desktop PC, Tablet or Mobile phone.
Conversions between color systems and etc.
- HEX#28333B
- RGB40, 51, 59
- CMYK7, 3, 0, 77
- CSSrgb(40, 51, 59)
- HSL205°, 19%, 19%
- HSL Precise205.263°, 19.192%, 19.412%
- HSV205°, 32%, 23%
- HSB205°, 32%, 23%
- Normalized R (0.0–1.0)0.157
- Normalized G (0.0–1.0)0.200
- Normalized B (0.0–1.0)0.231
- GLSLvec3(0.157, 0.200, 0.231)
- GLSL with alphavec4(0.157, 0.200, 0.231, 1.000)
- HLSL / Metalfloat3(0.157, 0.200, 0.231)
- Percentage of Red in RGB15.7%
- Percentage of Green in RGB20%
- Percentage of Blue in RGB23.1%
- Color FamilyAzure
- Saturation FamilyLow Saturation
- Lightness FamilyDark
- HEX ID28333B
- DECIMAL ID2634555
- Name LengthThis color has no name
- Seen by search & AI crawlers13 times
- Counting from2025-01-01
