#181D74 Hex Color
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A dark, cool indigo with a muted purple undertone, #181d74 feels serious, stable, and slightly mysterious. This hex code works well as a dominant background for finance, security, government, or night-themed interfaces, especially with white text. White text reaches about 14.3:1 contrast, helping small body text meet WCAG AA. Its low lightness can feel heavy across large areas, so use brighter accents to add hierarchy and energy.
Questions about #181d74
What is #181d74 in RGB, HSL and CMYK?
In RGB, #181d74 is rgb(24, 29, 116), in HSL hsl(237, 66%, 27%) and in CMYK 79%, 75%, 0%, 55%.
What colors pair well with #181d74?
#181d74 pairs well with burgundy accents and warm off-white surfaces, which soften its cool, dark base while preserving its formal character across interfaces, identity systems, and editorial layouts. Use burgundy sparingly for calls to action or small brand details.
Is #181d74 readable on white or black?
#181d74 has a 14.31:1 contrast ratio on white and 1.46:1 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.