#21538C Hex Color
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The hex code #21538c is a dark, muted blue with a cool, slightly gray cast. Its deep value creates a serious, dependable feel for finance, technology, government, and security designs. Use it as a dominant background or supporting tone. White text reaches about 7.8:1 contrast, meeting WCAG AA requirements for body text.
Questions about #21538c
What is #21538c in RGB, HSL and CMYK?
In RGB, #21538c is rgb(33, 83, 140), in HSL hsl(212, 62%, 34%) and in CMYK 76%, 41%, 0%, 45%.
What colors pair well with #21538c?
#21538c pairs well with white, soft gray, pale blue, and warm beige tones, creating clear contrast while softening its cool depth. Use white for crisp interfaces, pale neutrals for backgrounds, and warm accents to keep the palette approachable.
Is #21538c a warm or cool color?
#21538c reads as a cool, muted blue because its blue channel dominates while its lower saturation adds a gray cast, giving the shade a restrained character rather than a bright or energetic appearance. That quality suits focused, trustworthy interfaces.
Is #21538c readable on white or black?
#21538c has a 7.83:1 contrast ratio on white and 2.68:1 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.