#0066B3 Hex Color

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This saturated, mid-tone blue carries a crisp, professional weight that feels both established and secure. Because it is highly legible against white, #0066b3 functions best as a dominant base for corporate UI or law enforcement branding. While it pairs predictably with white, try setting it against soft slate grays to ground the color. The hex code for this primary blue is #0066b3.

Questions about #0066b3

What is #0066b3 in RGB, HSL and CMYK?

In RGB, #0066b3 is rgb(0, 102, 179), in HSL hsl(206, 100%, 35%) and in CMYK 100%, 43%, 0%, 30%.

What colors pair well with #0066b3?

This blue works best when balanced against neutral, grounded tones to soften its high-energy saturation. Pairing #0066b3 with slate or charcoal creates a stable, professional contrast, while using a crisp off-white helps maintain the color's clean and legible professional aesthetic.

Is #0066b3 readable on white or black?

#0066b3 has a 5.91:1 contrast ratio on white and 3.55:1 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.

#0066B3 Hex Color

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Questions about #0066b3

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