#213748 Hex Color
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#213748 is a dark, muted blue with gray and subtle green undertones. Its low saturation gives interfaces a serious, controlled feel, making it effective as a dominant background for finance, technology, or government designs. Pair it with warm ivory or rust accents for contrast. White text remains highly legible, with about 12.3:1 contrast. The hex code for this color is #213748.
Questions about #213748
What is #213748 in RGB, HSL and CMYK?
In RGB, #213748 is rgb(33, 55, 72), in HSL hsl(206, 37%, 21%) and in CMYK 54%, 24%, 0%, 72%.
What colors pair well with #213748?
Warm ivory and soft off-white create clear contrast with #213748, while rust, terracotta, or muted orange accents add warmth without overwhelming its restrained blue-gray character. Use pale neutrals for spacious layouts and warm accents for buttons or highlights.
Is #213748 warm or cool?
#213748 reads as cool because its blue base and subtle green undertones outweigh the warmth of its muted saturation. The gray content keeps it controlled rather than icy, making it feel calm, formal, and dependable in large interface areas.
Is #213748 readable on white or black?
#213748 has a 12.31:1 contrast ratio on white and 1.70:1 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.