#645D64
Umber · medium neutral
About #645D64
#645D64 is a near-neutral, medium shade in the gray family. On screen it is built from 39% red, 36% green and 39% blue; for print, its CMYK mix is 0% cyan, 7% magenta, 0% yellow and 61% black. Being nearly neutral, it pairs easily with warm and cool tones alike.
Of the common colour names it is similar to Umber (ΔE 12.6); Gray comes next. Its complementary colour, directly opposite on the colour wheel, is #5D645D — a umber tone that gives the strongest contrast in hue.
Designers tend to use medium tones like #645D64 for illustrations, icons and secondary elements. White text reads best on it at 6.38:1 (a WCAG AA pass). Used as a text colour on white, it is readable too (6.38:1).
Colour codes
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Closest named colours
ΔE measures visible difference: under 2 is barely noticeable, over 10 is clearly different.
Text on #645D64
WCAG contrast for white and black text on this colour.
Colour-blindness preview
How #645D64 appears to people with the three most common types of colour-vision deficiency.
Shades, tints & matching colours
Similar colours
Frequently asked questions
›What colour is #645D64?
#645D64 is a near-neutral, medium shade in the gray family. On screen it is built from 39% red, 36% green and 39% blue; for print, its CMYK mix is 0% cyan, 7% magenta, 0% yellow and 61% black. Being nearly neutral, it pairs easily with warm and cool tones alike.
›What text colour should I use on #645D64?
Use white text. White on #645D64 has a contrast ratio of 6.38:1 (AA).
›What colours go with #645D64?
Its complementary colour is #5D645D, and analogous partners are #615D64 and #645D61.