#537378 Hex Color
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Not a bright sky blue, this color is a grayed cyan with green undertones that reads matte and dim. Its low saturation makes it best as a supporting tone, and white text on #537378 passes AA contrast at about 5.1:1. Pair it with terracotta or dusty coral for warmth. The hex code suits tech branding, muted UI panels, and calm backgrounds.
Questions about #537378
What is #537378 in RGB, HSL and CMYK?
In RGB, #537378 is rgb(83, 115, 120), in HSL hsl(188, 18%, 40%) and in CMYK 31%, 4%, 0%, 53%. Browse more shades of gray with names and hex codes.
What colors pair well with #537378?
The muted cyan looks richer next to warm accents like terracotta or dusty coral, which offset its gray cast. Cream and charcoal also work when you want a softer, lower-contrast palette.
Does #537378 read warm or cool?
It leans cool from its blue-green base, but the heavy gray saturation softens that chill. The result feels closer to weathered slate than to a crisp icy blue.
Is #537378 readable on white or black?
#537378 has a 5.13:1 contrast ratio on white and 4.09:1 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 works only for large text (24px, or 18.5px bold). Try other pairs in the contrast checker.