#183F6F Hex Color
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Dark and muted, #183f6f is a cool blue with low saturation and a slightly gray, shadowed cast. Its serious depth supports finance, security, government, and corporate branding, especially as a dominant background or uniform color. Pair it with burgundy for a richer formal palette. The hex code #183f6f supports clear white text at about 10.6:1 contrast.
Questions about #183f6f
What is #183f6f in RGB, HSL and CMYK?
In RGB, #183f6f is rgb(24, 63, 111), in HSL hsl(213, 64%, 26%) and in CMYK 78%, 43%, 0%, 56%.
What colors pair well with #183f6f?
Burgundy pairs especially well with #183f6f for a rich, formal palette, while white provides crisp contrast and pale blue or gray can soften its depth without losing its serious character.
Is #183f6f a warm or cool color?
#183f6f reads as a cool blue because its low-saturation, slightly gray cast gives it a shadowed, restrained appearance rather than a warm or vivid feel in most palettes and interfaces alike.
Is #183f6f readable on white or black?
#183f6f has a 10.60:1 contrast ratio on white and 1.97:1 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.