#577E98
Slate Gray · medium cool blue
About #577E98
#577E98 is a muted, medium shade in the blue family. On screen it is built from 34% red, 49% green and 60% blue; for print, its CMYK mix is 43% cyan, 17% magenta, 0% yellow and 40% black. Its overall feel is cool.
Of the common colour names it is similar to Slate Gray (ΔE 9.0); Steel Blue comes next. Its complementary colour, directly opposite on the colour wheel, is #987157 — a mocha mousse tone that gives the strongest contrast in hue.
Designers tend to use medium tones like #577E98 for illustrations, icons and secondary elements. Black text reads best on it at 4.84:1 (a WCAG AA pass).
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Closest named colours
ΔE measures visible difference: under 2 is barely noticeable, over 10 is clearly different.
Text on #577E98
WCAG contrast for white and black text on this colour.
Colour-blindness preview
How #577E98 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 #577E98?
#577E98 is a muted, medium shade in the blue family. On screen it is built from 34% red, 49% green and 60% blue; for print, its CMYK mix is 43% cyan, 17% magenta, 0% yellow and 40% black. Its overall feel is cool.
›What text colour should I use on #577E98?
Use black text. Black on #577E98 has a contrast ratio of 4.84:1 (AA).
›What colours go with #577E98?
Its complementary colour is #987157, and analogous partners are #579892 and #575D98.