#646788 Hex Color
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#646788 is a muted, ashy indigo with cool gray undertones and a matte, low-saturation finish. Its restrained character supports calm, structured designs with a spiritual or mysterious edge. Use it as a supporting tone in luxury, meditation, or night-sky branding, paired with soft ivory and muted gold. White text achieves about 5.5:1 contrast. The hex code is #646788.
Questions about #646788
What is #646788 in RGB, HSL and CMYK?
In RGB, #646788 is rgb(100, 103, 136), in HSL hsl(235, 15%, 46%) and in CMYK 26%, 24%, 0%, 47%.
What colors pair well with #646788?
Is #646788 a warm or cool color?
#646788 reads as a cool color because its muted indigo base carries blue-violet influence and gray undertones, while its low saturation tempers that coolness with a calm, matte appearance rather than a bright, icy effect.
Is #646788 readable on white or black?
#646788 has a 5.47:1 contrast ratio on white and 3.83:1 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.