#637B85 Hex Color
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#637b85 is a muted cyan-blue with a dusty, ashy gray cast and medium-dark lightness. Its matte quality supports calm, understated layouts without feeling flat. The hex code #637b85 works well as a supporting tone in technology, aerospace, productivity, and communication designs. Black text reaches about 4.7:1 contrast on this color, meeting the 4.5:1 WCAG AA threshold for normal body text.
Questions about #637b85
What is #637b85 in RGB, HSL and CMYK?
In RGB, #637b85 is rgb(99, 123, 133), in HSL hsl(198, 15%, 45%) and in CMYK 26%, 8%, 0%, 48%.
What colors pair well with #637b85?
#637b85 pairs well with warm burgundy, charcoal, and off-white, which sharpen its gray cast without making the palette feel harsh; burgundy adds focused accents, while off-white preserves an airy, subdued character.
Is #637b85 readable on white or black?
#637b85 has a 4.46:1 contrast ratio on white and 4.70:1 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.