#0558BB Hex Color
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Strong and highly saturated, #0558bb is a cool, medium-dark blue with a clear, high-chroma finish. Its intensity draws attention, while its darker value supports trust, control, and serious digital interfaces. Use the hex code for calls to action, technology branding, or focused accents. White text reaches about 6.7:1 contrast, suitable for WCAG AA body text.
Questions about #0558bb
What is #0558bb in RGB, HSL and CMYK?
In RGB, #0558bb is rgb(5, 88, 187), in HSL hsl(213, 95%, 38%) and in CMYK 97%, 53%, 0%, 27%.
What colors pair well with #0558bb?
#0558bb pairs well with warm white, charcoal, and muted burgundy, which soften its high saturation while preserving its strong presence in interfaces, brand marks, and calls to action without making the palette feel dull.
Is #0558bb readable on white or black?
#0558bb has a 6.73:1 contrast ratio on white and 3.11:1 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.