#18135C Hex Color
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With its very low lightness and cool violet-blue undertone, #18135c is a deep indigo that feels serious, mysterious, and structured. This hex code works best as a dominant background for dark interfaces, night-sky themes, or formal branding, with white text reading clearly at about 16.3:1 contrast. It can feel heavy across large layouts without lighter breaks.
Questions about #18135c
What is #18135c in RGB, HSL and CMYK?
In RGB, #18135c is rgb(24, 19, 92), in HSL hsl(244, 66%, 22%) and in CMYK 74%, 79%, 0%, 64%.
Does #18135c read as warm or cool?
#18135c reads as cool because its dark blue-violet base carries a strong violet-blue undertone, while its low lightness makes the shade feel formal and heavy rather than bright or playful beside pale, warm neutrals.
Where does #18135c work best in a design?
#18135c works best as a dominant dark background, navigation color, or large brand field in dark-mode interfaces, formal finance layouts, nautical themes, and spiritual or creative projects where a serious, structured mood supports the content. Use white text for small copy and brighter accents for controls.
Is #18135c readable on white or black?
#18135c has a 16.32:1 contrast ratio on white and 1.28:1 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.