#663840 Hex Color
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Dark, muted red with a dusky plum undertone, #663840 creates a serious, smoky mood. Its low saturation keeps designs understated, while its depth suits luxury, wine, academic, and formal branding. Use it as a dominant background with cream or pale blue accents, though it can feel muddy at large sizes. White text reads clearly on this hex code.
Questions about #663840
What is #663840 in RGB, HSL and CMYK?
In RGB, #663840 is rgb(102, 56, 64), in HSL hsl(350, 29%, 31%) and in CMYK 0%, 45%, 37%, 60%.
What colors pair well with #663840?
Cream and pale blue create balanced pairings with #663840, softening its smoky depth while adding contrast; muted sage can also support a subdued, natural palette.
Does #663840 feel warm or cool?
#663840 reads as a warm-leaning dark red because its red component leads, though its dusky plum undertone adds a cooler edge. That balance makes it restrained rather than bright or fiery.
Is #663840 readable on white or black?
#663840 has a 9.52:1 contrast ratio on white and 2.20:1 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 is too faint for text. Try other pairs in the contrast checker.