#0C66E3 Hex Color
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#0c66e3 is a loud, saturated blue with a cool, electric edge. Designers reach for it when a button or link needs attention fast. White text passes contrast checks on it, so it handles small labels and CTAs well. At full size it can overwhelm a layout, so treat it as an accent rather than a base.
Questions about #0c66e3
What is #0c66e3 in RGB, HSL and CMYK?
In RGB, #0c66e3 is rgb(12, 102, 227), in HSL hsl(215, 90%, 47%) and in CMYK 95%, 55%, 0%, 11%.
What colors pair well with #0c66e3?
Warm neutrals like cream, amber, or terracotta balance its intensity, while charcoal keeps it grounded. Avoid pairing it with bright greens, which fight for attention.
Is #0c66e3 readable on white or black?
#0c66e3 has a 5.21:1 contrast ratio on white and 4.02:1 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.