#233B87 Hex Color
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#233b87 is a saturated, deep blue that balances professional authority with a moody undertone. Its high contrast makes it an excellent choice for UI backgrounds or large-scale branding where readability matters, as white text pops against it with a 10.3:1 ratio. Pair this hex code with muted golds or soft creams to keep the palette from feeling too rigid or cold in corporate designs.
Questions about #233b87
What is #233b87 in RGB, HSL and CMYK?
In RGB, #233b87 is rgb(35, 59, 135), in HSL hsl(226, 59%, 33%) and in CMYK 74%, 56%, 0%, 47%.
What colors pair best with #233b87?
Pair #233b87 with muted gold or soft cream to balance its deep, professional intensity and prevent the palette from feeling too rigid. For a modern, balanced look, use a clean off-white for background elements to let the blue carry the primary visual weight.
Is #233b87 readable on white or black?
#233b87 has a 10.25:1 contrast ratio on white and 2.04:1 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.