#283638 Hex Color
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Think of wet slate with a faint blue cast. The hex code #283638 is a dark, ashy cyan, its blue muted by heavy gray. That low lightness makes it a solid dark mode background; white text on it reaches about 12.5:1 contrast, well past AA. Pair it with amber or terracotta accents so layouts don’t go flat.
Questions about #283638
What is #283638 in RGB, HSL and CMYK?
In RGB, #283638 is rgb(40, 54, 56), in HSL hsl(188, 17%, 19%) and in CMYK 29%, 4%, 0%, 78%.
What colors pair well with #283638?
Warm accents like amber, terracotta, and soft coral keep #283638 from reading flat, since its blue is heavily grayed. For a quieter scheme, use it with muted sage and off-white text.
Is #283638 readable on white or black?
#283638 has a 12.53:1 contrast ratio on white and 1.67:1 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.