#1B0091 Hex Color
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Dark and highly saturated, #1b0091 is a cold indigo with a slight violet cast and little gray. This hex code gives designs a serious, mysterious edge, working well as an accent or dark-mode surface. White text reads clearly against it, while burgundy or silver adds refined contrast to luxury, spiritual, corporate, and night-sky themes.
Questions about #1b0091
What is #1b0091 in RGB, HSL and CMYK?
In RGB, #1b0091 is rgb(27, 0, 145), in HSL hsl(251, 100%, 28%) and in CMYK 81%, 100%, 0%, 43%.
What colors pair well with #1b0091?
Pair #1b0091 with white for a crisp high-contrast look, or add silver and burgundy for a more refined palette; check the final text size and weight because white may need verification for normal-sized accessibility text.
Is #1b0091 a warm or cool color?
#1b0091 reads as a cool indigo because its blue base dominates while a small violet cast adds depth; it can make interfaces feel serious, focused, mysterious, or nocturnal without the softness of a muted purple.
Where does #1b0091 work well in design?
#1b0091 works well for dark-mode surfaces, focused buttons, headers, and night-sky or luxury-inspired graphics, especially when a deep accent is needed without making the palette feel completely black.
Is #1b0091 readable on white or black?
#1b0091 has a 14.42:1 contrast ratio on white and 1.45:1 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.