#66DD4B Hex Color
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#66dd4b is a bright, high-chroma green with a neon intensity that commands immediate attention. Because of its electric quality, this hue works best as a 10% accent in UI elements like success states or call-to-action buttons. It pairs surprisingly well with deep charcoal grays to ground its sharpness. The hex code for this color is #66dd4b, which offers high contrast when paired with black text.
Questions about #66dd4b
What is #66dd4b in RGB, HSL and CMYK?
In RGB, #66dd4b is rgb(102, 221, 75), in HSL hsl(109, 68%, 58%) and in CMYK 54%, 0%, 66%, 13%.
What works well with #66dd4b in design layouts?
This intense green performs best when grounded by deep neutrals like charcoal. The extreme contrast of #66dd4b against dark grays prevents the neon from overwhelming the eyes, making it an effective choice for call-to-action buttons or status indicators.
Is #66dd4b readable on white or black?
#66dd4b has a 1.74:1 contrast ratio on white and 12.00:1 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.