#181B49 Hex Color
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Dark and muted, #181b49 is a cool indigo with subtle purple undertones and a matte finish. The hex code #181b49 brings seriousness, structure, and mystery to dark interfaces, corporate branding, meditation themes, and night-sky palettes. Use it as a dominant background with white text, which reaches about 16.3:1 contrast, while brighter accents prevent large areas from feeling gloomy.
Questions about #181b49
What is #181b49 in RGB, HSL and CMYK?
In RGB, #181b49 is rgb(24, 27, 73), in HSL hsl(236, 51%, 19%) and in CMYK 67%, 63%, 0%, 71%.
What colors pair well with #181b49?
#181b49 works well with white, pale blue, lavender, and muted warm accents, creating clear contrast while preserving its calm, serious character across interfaces, layouts, and branded graphics with dark backgrounds. Use lighter options for surfaces and warm accents for buttons or highlights.
Where does #181b49 work best?
#181b49 works best as a dominant background or header color in dark interfaces, corporate identity systems, meditation products, and night-themed layouts where its cool, muted depth can feel focused rather than bright or playful.
Is #181b49 readable on white or black?
#181b49 has a 16.25:1 contrast ratio on white and 1.29:1 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.