Information about #15355B color
Basic facts about this digital color
The color #15355B reads as a energetic, saturated azure and 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 almost identical to Cello (#1E385B). Its next-closest registered neighbors are Biscay (#1B3162) and Delft Blue (#1F305E).
In RGB terms — rgb(21, 53, 91) — the blue channel does the heavy lifting here. If you plan to put text on a #15355B background, choose white — the contrast ratio is 12.4:1 (passing WCAG AAA), while black manages only 1.7:1. For print, note the heavy black component (K:64) — 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.
#15355B color variations
View this color variations of tints, shades, tones and hues.
#15355B color tints
Tints look brighter, pastel, and less intense.
#15355B color shades
Shades look darker, richer, and more solid.
#15355B color tones
Tones looks more sophisticated and complex than base colors.
#15355B color hues
A hue refers to the basic neighbors of color and is variation of base color on the color wheel.
#15355B 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 #15355B color
View adjacent and very similar colors.
Nearest named colors to #15355B
The closest officially registered color names in the Register, ordered by similarity — your shade’s neighborhood is already being claimed.
#1E385B
#1B3162
#1F305E
#193766
#163968
#174358
#203F58
#11394C
#072C5E
#1D2951
#21425F
#15355B color backgrounds & wallpapers
Download color wallpaper / background for your Desktop PC, Tablet or Mobile phone.
Conversions between color systems and etc.
- HEX#15355B
- RGB21, 53, 91
- CMYK27, 15, 0, 64
- CSSrgb(21, 53, 91)
- HSL213°, 63%, 22%
- HSL Precise212.571°, 62.5%, 21.961%
- HSV213°, 77%, 36%
- HSB213°, 77%, 36%
- Normalized R (0.0–1.0)0.082
- Normalized G (0.0–1.0)0.208
- Normalized B (0.0–1.0)0.357
- GLSLvec3(0.082, 0.208, 0.357)
- GLSL with alphavec4(0.082, 0.208, 0.357, 1.000)
- HLSL / Metalfloat3(0.082, 0.208, 0.357)
- Percentage of Red in RGB8.2%
- Percentage of Green in RGB20.8%
- Percentage of Blue in RGB35.7%
- Color FamilyAzure
- Saturation FamilyHigh Saturation
- Lightness FamilyDark
- HEX ID15355B
- DECIMAL ID1389915
- Name LengthThis color has no name
- Seen by search & AI crawlers13 times
- Counting from2025-01-01
