#CEFF99 Hex Color
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Reach for #ceff99 when a project needs fresh, glowing energy, like energy drink branding, gaming overlays, or sports graphics. This luminous lime is very light with strong yellow undertones, so it pops against dark backgrounds but washes out next to white. Black text reads clearly on it at about 18.4:1 contrast. The hex code #ceff99 works best as an accent rather than a full page background.
Questions about #ceff99
What is #ceff99 in RGB, HSL and CMYK?
In RGB, #ceff99 is rgb(206, 255, 153), in HSL hsl(89, 100%, 80%) and in CMYK 19%, 0%, 40%, 0%.
What colors pair well with #ceff99?
Is #ceff99 a warm or cool color?
It reads warm. The yellow undertones and high lightness give it a sunny, energetic feel, even though green often sits on the cool side of the wheel. Use it where you want freshness without visual weight.
Is #ceff99 readable on white or black?
#ceff99 has a 1.14:1 contrast ratio on white and 18.38:1 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.