#2B37B5 Hex Color
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Not quite navy and not quite royal blue, #2b37b5 is a dark indigo with a dim, moody edge. Its low lightness gives it real weight, which suits dark mode UIs, formal branding, and night sky themes. White text reads clearly on it at about 9.1:1 contrast. Pair it with warm golds or burgundy so it never goes flat.
Questions about #2b37b5
What is #2b37b5 in RGB, HSL and CMYK?
In RGB, #2b37b5 is rgb(43, 55, 181), in HSL hsl(235, 62%, 44%) and in CMYK 76%, 70%, 0%, 29%.
What colors pair well with #2b37b5?
Warm golds and muted corals balance its cool depth, while burgundy makes it read richer than tan or camel. For text, white reaches about 9.1:1 contrast on this hex color, well past WCAG AA.
Does #2b37b5 work as a background color?
Yes. Its darkness holds white body text at roughly 9.1:1 contrast, but full-screen blocks can feel heavy. Use it as a dominant base in dark mode layouts and break it up with lighter indigo tints.
Is #2b37b5 readable on white or black?
#2b37b5 has a 9.06:1 contrast ratio on white and 2.31:1 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.