#639A42 Hex Color
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#639a42 is a rather unsaturated lime that reads like sunlit grass instead of neon. Its muted, mid-tone weight gives it a grounded, dependable feel, which suits nature, sports, and gaming palettes that want energy without noise. It flatters deep plum and warm charcoal, and black text passes AA contrast on it, so it holds up behind small body copy.
Questions about #639a42
What is #639a42 in RGB, HSL and CMYK?
In RGB, #639a42 is rgb(99, 154, 66), in HSL hsl(98, 40%, 43%) and in CMYK 36%, 0%, 57%, 40%.
Does black or white text read better on #639a42?
Black text. Contrast with #639a42 is about 6.2:1, which clears the WCAG AA 4.5:1 threshold for small body text. White text falls short, so save light type for large headings only.
What colors pair well with #639a42?
Try deep plum or charcoal to offset its grassy warmth. Warm creams soften it for natural branding, while bright neons fight its muted character and flatten the whole palette.
Is #639a42 readable on white or black?
#639a42 has a 3.37:1 contrast ratio on white and 6.23:1 on black. WCAG asks for 4.5:1 for body text and 3:1 for large text, so on white it works only for large text (24px, or 18.5px bold) and on black it works for body text. Try other pairs in the contrast checker.