#42B8FF Hex Color
Online color picker to view shades, tints, color codes, and complementary colors
The hex code #42b8ff is a fairly saturated, cool blue with a bright, neon-leaning finish. Its clear, energetic lightness supports trust and reliability in technology, finance, healthcare, and security interfaces. Use it as a focused accent or call-to-action color rather than a full background. Black text reads clearly on it, meeting WCAG AA body-text contrast.
Questions about #42b8ff
What is #42b8ff in RGB, HSL and CMYK?
In RGB, #42b8ff is rgb(66, 184, 255), in HSL hsl(203, 100%, 63%) and in CMYK 74%, 28%, 0%, 0%.
What colors pair well with #42b8ff?
#42b8ff pairs well with navy, charcoal, and warm orange accents, which temper its bright saturation without weakening its clear, technical character. Use darker neutrals for text and structure, then reserve orange for small highlights or calls to action.
Is #42b8ff readable on white or black?
#42b8ff has a 2.20:1 contrast ratio on white and 9.53:1 on black. WCAG asks for 4.5:1 for body text and 3:1 for large text, so on white it is too faint for text and on black it works for body text. Try other pairs in the contrast checker.