#213D5B Hex Color
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Darker and grayer than standard navy, #213d5b looks like faded denim or water at dusk. Its heavy muting keeps it from feeling playful, which is why it suits finance sites, government forms, and dark UI backgrounds. As a 60% base it holds up well, though it can turn muddy next to bright whites, so try it with burgundy or warm brass instead. White text on this hex code hits about 11.2:1 contrast, well past WCAG AA for small body copy.
Questions about #213d5b
What is #213d5b in RGB, HSL and CMYK?
In RGB, #213d5b is rgb(33, 61, 91), in HSL hsl(211, 47%, 24%) and in CMYK 64%, 33%, 0%, 64%.
What text color works best on #213d5b?
White text is the safest choice, reaching about 11.2:1 contrast against #213d5b. That easily clears WCAG AA, so even small body copy stays readable on it.
What colors pair well with #213d5b?
This muted navy flatters burgundy and warm brass better than the usual camel or beige. The low saturation means pairings should stay dusty too, or the mix can clash.
Is #213d5b readable on white or black?
#213d5b has a 11.15:1 contrast ratio on white and 1.88:1 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.