#4EFF00 Hex Color
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#4eff00 is a high-intensity neon green with extreme saturation that demands attention. Because it vibrates visually, this shade functions best as a small, tactical accent rather than a background color. It pairs surprisingly well with dark charcoal grays for a modern, tech-focused look. Black text remains perfectly legible against this hex code, ensuring that your contrast requirements stay met even at small font sizes.
Questions about #4eff00
What is #4eff00 in RGB, HSL and CMYK?
In RGB, #4eff00 is rgb(78, 255, 0), in HSL hsl(102, 100%, 50%) and in CMYK 69%, 0%, 100%, 0%.
How should #4eff00 be used in web design?
Use #4eff00 strictly as a tactical accent for calls-to-action or status indicators rather than a background. Its extreme saturation creates a strong visual vibration, so it performs best when paired with dark charcoal or deep black elements to ground the intensity.
Is #4eff00 readable on white or black?
#4eff00 has a 1.34:1 contrast ratio on white and 15.62:1 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.