#B3FF42 Hex Color
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Bright as fresh spring grass, #b3ff42 is a neon lime that glows on screen. Its high lightness and saturation make it loud, so treat it as a small accent rather than a full background. It looks richest against charcoal, and black text on top reaches a 17.3:1 contrast, well past AA. Sports brands, energy drinks, and gaming UI lean on this hex code for energy. Warmer options live among other shades of yellow.
Questions about #b3ff42
What is #b3ff42 in RGB, HSL and CMYK?
In RGB, #b3ff42 is rgb(179, 255, 66), in HSL hsl(84, 100%, 63%) and in CMYK 30%, 0%, 74%, 0%.
What colors pair well with #b3ff42?
Charcoal, deep navy, and near-black tones let #b3ff42 glow without overwhelming the eye. Skip pale backgrounds, where its high lightness washes out and loses its punch.
Is #b3ff42 readable on white or black?
#b3ff42 has a 1.21:1 contrast ratio on white and 17.29:1 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.