Information about #645A58 color
Basic facts about this digital color
#645A58 presents itself as a softly muted neutral grey — one that occupies the middle of the lightness scale. It is a natural fit for balanced palettes where no single element should shout. In The Official Register of Color Names it is a hair away from Italian Leather (#635A52). Slightly further away sit Carbon Gray (#625D5D) and Triple Stonehenge (#665C52).
Technically, the mix leans on its red channel (rgb(100, 90, 88)), which gives #645A58 its character. On this background, white text reaches a 6.7:1 contrast ratio (passing WCAG AA); black stays at 3.1:1. 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, #645A58 is still unnamed — it can be claimed and named in The Official Register of Color Names.
#645A58 color variations
View this color variations of tints, shades, tones and hues.
#645A58 color tints
Tints look brighter, pastel, and less intense.
#645A58 color shades
Shades look darker, richer, and more solid.
#645A58 color tones
Tones looks more sophisticated and complex than base colors.
#645A58 color hues
A hue refers to the basic neighbors of color and is variation of base color on the color wheel.
#645A58 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 #645A58 color
View adjacent and very similar colors.
Nearest named colors to #645A58
The closest officially registered color names in the Register, ordered by similarity — your shade’s neighborhood is already being claimed.
#635A52
#625D5D
#665C52
#6B5A5A
#666156
#5C5B59
#5C5858
#645452
#655D50
#656255
#68535B
#5C5D56
#645A58 color backgrounds & wallpapers
Download color wallpaper / background for your Desktop PC, Tablet or Mobile phone.
Conversions between color systems and etc.
- HEX#645A58
- RGB100, 90, 88
- CMYK0, 4, 5, 61
- CSSrgb(100, 90, 88)
- HSL10°, 6%, 37%
- HSL Precise10°, 6.383%, 36.863%
- HSV10°, 12%, 39%
- HSB10°, 12%, 39%
- Normalized R (0.0–1.0)0.392
- Normalized G (0.0–1.0)0.353
- Normalized B (0.0–1.0)0.345
- GLSLvec3(0.392, 0.353, 0.345)
- GLSL with alphavec4(0.392, 0.353, 0.345, 1.000)
- HLSL / Metalfloat3(0.392, 0.353, 0.345)
- Percentage of Red in RGB39.2%
- Percentage of Green in RGB35.3%
- Percentage of Blue in RGB34.5%
- Color FamilyRed
- Saturation FamilyDesaturated
- Lightness FamilyNeutral
- HEX ID645A58
- DECIMAL ID6576728
- Name LengthThis color has no name
- Seen by search & AI crawlers25 times
- Counting from2025-01-01
