#666B64 Hex Color
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This muted olive tone balances dusty gray undertones with a subtle, earthy lime essence. Because of its low saturation and balanced lightness, #666b64 works best as a grounding support color rather than a dominant base. It pairs effectively with high-contrast, warm terracotta shades. The hex code #666b64 offers enough readability for small text, though it can appear muddy when used in large, flat blocks.
Questions about #666b64
What is #666b64 in RGB, HSL and CMYK?
In RGB, #666b64 is rgb(102, 107, 100), in HSL hsl(103, 3%, 41%) and in CMYK 5%, 0%, 7%, 58%.
Why does #666b64 sometimes appear muddy in designs?
It appears muddy when used in large, solid blocks because of its low saturation and gray undertones. This color performs significantly better as a subtle background accent or small-scale graphic element rather than a dominant, full-bleed main color in your digital layout.
What colors pair well with #666b64?
Because #666b64 acts as a neutral olive, it pairs effectively with high-contrast, warm terracotta or soft cream shades. These warmer colors provide the necessary visual pop to offset the dusty, cooling effect of the gray undertones present in this specific shade.
Is #666b64 readable on white or black?
#666b64 has a 5.45:1 contrast ratio on white and 3.85:1 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.