#6388B3 Hex Color
Online color picker to view shades, tints, color codes, and complementary colors

Muted and cool, #6388b3 is a dusty blue with gray undertones and a matte, restrained finish. Its moderate lightness supports dependable branding for finance, healthcare, government, and technology without feeling severe. Use it as a supporting tone with warm white or charcoal. Black text provides about 5.7:1 contrast. The hex code is #6388b3.
Questions about #6388b3
What is #6388b3 in RGB, HSL and CMYK?
In RGB, #6388b3 is rgb(99, 136, 179), in HSL hsl(212, 34%, 55%) and in CMYK 45%, 24%, 0%, 30%. Browse more shades of blue with names and hex codes.
What colors pair well with #6388b3?
Warm white, charcoal, and muted terracotta pair well with #6388b3, balancing its cool gray undertones with warmth and contrast. Use warm white for backgrounds, charcoal for text, and terracotta as a restrained accent.
Is #6388b3 warm or cool, and where does it work best?
It is a cool, muted blue because its gray undertones soften the hue without adding warmth. That restrained character suits interfaces, healthcare materials, finance or technology branding, and calm backgrounds, especially when paired with light neutrals.
Is #6388b3 readable on white or black?
#6388b3 has a 3.68:1 contrast ratio on white and 5.70:1 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.