#645F68 Hex Color
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#645f68 is a dark, low-saturation purple with gray and violet undertones. Its dusty, almost-gray finish creates a serious, mysterious mood suited to moody branding, gaming interfaces, and spiritual designs. Use the hex code #645f68 as a supporting tone or dark UI background; white text provides about a 6.2:1 contrast ratio for readable body copy.
Questions about #645f68
What is #645f68 in RGB, HSL and CMYK?
In RGB, #645f68 is rgb(100, 95, 104), in HSL hsl(273, 5%, 39%) and in CMYK 4%, 9%, 0%, 59%. Browse more shades of gray with names and hex codes.
What colors pair well with #645f68?
Does #645f68 read as a warm or cool color?
#645f68 reads as a cool, neutral-leaning purple because its violet undertone is softened by a substantial gray component. It feels restrained rather than bright, making it useful when a design needs depth without saturated color.
Does #645f68 work as a dark UI background?
#645f68 works well as a dark UI background, and white text reaches about a 6.2:1 contrast ratio against it, which generally meets WCAG AA for normal-sized body text. Check lighter accent colors separately, since contrast can vary.
Is #645f68 readable on white or black?
#645f68 has a 6.21:1 contrast ratio on white and 3.37:1 on black. WCAG asks for 4.5:1 for body text and 3:1 for large text, so on white it works for body text and on black it works only for large text (24px, or 18.5px bold). Try other pairs in the contrast checker.