#428BBF Hex Color
Steady blue with a cool, muted feel
#428bbf is a muted, cool blue with moderate lightness and a slightly gray cast. Its steady, reliable character suits security, finance, healthcare, government, and technology branding. Use it as a supporting tone with navy or warm white; black text achieves about 5.7:1 contrast. The hex code for this blue is #428bbf.
Questions about #428bbf
What is #428bbf in RGB, HSL and CMYK?
In RGB, #428bbf is rgb(66, 139, 191), in HSL hsl(205, 49%, 50%) and in CMYK 65%, 27%, 0%, 25%.
What colors pair well with #428bbf?
#428bbf pairs well with navy for a dependable monochromatic scheme, warm white for softer contrast, and terracotta or muted orange for a balanced warm accent in interfaces, presentations, and brand palettes.
What mood does #428bbf convey?
#428bbf reads as cool, steady, and dependable because its moderate lightness and slight gray cast soften the blue’s intensity. It suits interfaces and branding that need clarity without feeling harsh.
Is #428bbf readable on white or black?
#428bbf has a 3.69:1 contrast ratio on white and 5.67:1 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.