#0A3599 Hex Color
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This saturated, deep blue carries a professional weight that commands attention without feeling aggressive. Because it is highly legible against white text with a 10.6:1 contrast ratio, #0a3599 functions effectively as a solid background color for corporate or tech interfaces. It leans towards a cool, authoritative tone, pairing best with crisp creams or light grays to balance its heavy intensity.
Questions about #0a3599
What is #0a3599 in RGB, HSL and CMYK?
In RGB, #0a3599 is rgb(10, 53, 153), in HSL hsl(222, 88%, 32%) and in CMYK 93%, 65%, 0%, 40%.
What colors pair well with the deep tone of #0a3599?
This blue anchors designs best when balanced by high-contrast neutrals like crisp cream or soft light gray. Using these lighter tones prevents the depth of the blue from feeling too heavy while maintaining a clean, modern aesthetic for professional layouts.
Is #0a3599 readable on white or black?
#0a3599 has a 10.59:1 contrast ratio on white and 1.98:1 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.