#577BB1 Hex Color
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#577bb1 is a muted, matte blue with a gray undertone that keeps it subdued. Its low saturation reads steady rather than bold, which suits finance, tech, and institutional work. Use the hex code #577bb1 as a supporting tone or UI background, and give it warm accents like terracotta to keep it from going flat.
Questions about #577bb1
What is #577bb1 in RGB, HSL and CMYK?
In RGB, #577bb1 is rgb(87, 123, 177), in HSL hsl(216, 37%, 52%) and in CMYK 51%, 31%, 0%, 31%. Browse more shades of blue with names and hex codes.
What colors pair well with #577bb1?
#577bb1 flatters dusty warm tones like terracotta, sand, and muted olive. For crisper contrast, pair it with off-white text or a dark charcoal instead of pure black.
Is #577bb1 readable on white or black?
#577bb1 has a 4.30:1 contrast ratio on white and 4.87:1 on black. WCAG asks for 4.5:1 for body text and 3:1 for large text, so on white it works only for large text (24px, or 18.5px bold) and on black it works for body text. Try other pairs in the contrast checker.