#307CC4 Hex Color
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The hex code #307cc4 is a medium, slightly muted blue with cool undertones and a steady, reliable feel. It suits security, finance, healthcare, and technology branding, especially as a supporting color beside charcoal or warm white. Black text reaches about 4.8:1 contrast here, meeting WCAG AA requirements for body text.
Questions about #307cc4
What is #307cc4 in RGB, HSL and CMYK?
In RGB, #307cc4 is rgb(48, 124, 196), in HSL hsl(209, 61%, 48%) and in CMYK 76%, 37%, 0%, 23%.
What colors pair well with #307cc4?
#307cc4 pairs well with white, warm white, charcoal, and deep navy, creating clear contrast while keeping its cool blue character steady. Use warm neutrals to soften it, or a darker blue for a more focused, technical palette.
Is #307cc4 readable on white or black?
#307cc4 has a 4.36:1 contrast ratio on white and 4.80:1 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.