#637D64
Eucalyptus · medium cool gray
About #637D64
With the hex code #637D64, this is a medium gray with a muted character. Its RGB recipe is 39% red, 49% green and 39% blue, while a printer would mix 21% cyan, 0% magenta, 20% yellow and 51% black. It reads as a cool colour.
If you had to name it, it is very close to Eucalyptus — a ΔE of 7.1 — followed by Hunter Green. For maximum hue contrast, pair it with its complement #7D637C, a eggplant shade.
In design, a medium colour like this works best for illustrations, icons and secondary elements. Black text reads best on it at 4.65:1 (a WCAG AA pass). Used as a text colour on white, it is readable too (4.52:1).
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 #637D64
WCAG contrast for white and black text on this colour.
Colour-blindness preview
How #637D64 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 #637D64?
With the hex code #637D64, this is a medium gray with a muted character. Its RGB recipe is 39% red, 49% green and 39% blue, while a printer would mix 21% cyan, 0% magenta, 20% yellow and 51% black. It reads as a cool colour.
›What text colour should I use on #637D64?
Use black text. Black on #637D64 has a contrast ratio of 4.65:1 (AA).
›What colours go with #637D64?
Its complementary colour is #7D637C, and analogous partners are #6F7D63 and #637D71.