#645A7B Hex Color

Moody and quiet dusty violet

Hex color #645a7b graphic
This dusty, unsaturated purple carries a sense of quiet seriousness. Because it is quite muted, #645a7b works best as a moody background or a supporting tone in structured designs rather than a primary focus. White text remains perfectly legible against this shade, making it a functional choice for dark interfaces. The hex code for this cool, grayish violet is #645a7b.

Questions about #645a7b

What is #645a7b in RGB, HSL and CMYK?
In RGB, #645a7b is rgb(100, 90, 123), in HSL hsl(258, 15%, 42%) and in CMYK 19%, 27%, 0%, 52%.
Where should I use #645a7b in a web design?
#645a7b excels as a background color for dark mode interfaces because its muted, unsaturated nature prevents eye strain. It creates a sophisticated, grounded aesthetic that pairs exceptionally well with white or light cream text for optimal readability.
What colors pair well with #645a7b?
This color pairs beautifully with neutral slate or soft off-white to maintain its quiet, professional mood. For a more structured look, use it alongside a warm terracotta to add a subtle, grounded contrast against the cool violet tones.
Is #645a7b readable on white or black?
#645a7b has a 6.38:1 contrast ratio on white and 3.29:1 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.