Information about #305B63 color
Basic facts about this digital color
The color #305B63 reads as a mildly saturated cyan and sits comfortably between light and dark. Expect to see shades like this in understated, calm designs that favor harmony over drama. In The Official Register of Color Names it is practically indistinguishable from Marathon (#305563). Nearby in the Register you will also find Casal (#2F6168) and Undercurrent (#365C6C).
Technically, the mix leans on its blue channel (rgb(48, 91, 99)), which gives #305B63 its character. If you plan to put text on a #305B63 background, choose white — the contrast ratio is 7.5:1 (passing WCAG AAA), while black manages only 2.8:1. On paper it relies strongly on black ink (K:61), so proof dark layouts before a large print run. Out of 16,777,216 possible colors, #305B63 is still unnamed — it can be claimed and named in The Official Register of Color Names.
#305B63 color variations
View this color variations of tints, shades, tones and hues.
#305B63 color tints
Tints look brighter, pastel, and less intense.
#305B63 color shades
Shades look darker, richer, and more solid.
#305B63 color tones
Tones looks more sophisticated and complex than base colors.
#305B63 color hues
A hue refers to the basic neighbors of color and is variation of base color on the color wheel.
#305B63 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 #305B63 color
View adjacent and very similar colors.
Nearest named colors to #305B63
The closest officially registered color names in the Register, ordered by similarity — your shade’s neighborhood is already being claimed.
#305563
#2F6168
#365C6C
#2E5060
#2F5A57
#304E5E
#305C71
#2F4D66
#2C5971
#275359
#256761
#265B71
#305B63 color backgrounds & wallpapers
Download color wallpaper / background for your Desktop PC, Tablet or Mobile phone.
Conversions between color systems and etc.
- HEX#305B63
- RGB48, 91, 99
- CMYK20, 3, 0, 61
- CSSrgb(48, 91, 99)
- HSL189°, 35%, 29%
- HSL Precise189.412°, 34.694%, 28.824%
- HSV189°, 52%, 39%
- HSB189°, 52%, 39%
- Normalized R (0.0–1.0)0.188
- Normalized G (0.0–1.0)0.357
- Normalized B (0.0–1.0)0.388
- GLSLvec3(0.188, 0.357, 0.388)
- GLSL with alphavec4(0.188, 0.357, 0.388, 1.000)
- HLSL / Metalfloat3(0.188, 0.357, 0.388)
- Percentage of Red in RGB18.8%
- Percentage of Green in RGB35.7%
- Percentage of Blue in RGB38.8%
- Color FamilyCyan
- Saturation FamilyMild Saturation
- Lightness FamilyNeutral
- HEX ID305B63
- DECIMAL ID3169123
- Name LengthThis color has no name
- Seen by search & AI crawlers17 times
- Counting from2025-01-01
