#99FF00 Hex Color
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This neon lime is hyper-saturated and intense, acting as a high-voltage accent rather than a base color. Because it is so bright, it works best in small doses to highlight UI elements or gaming graphics. Use black text for optimal readability, as the contrast ratio is exceptional. The hex code for this energetic shade is #99ff00.
Questions about #99ff00
What is #99ff00 in RGB, HSL and CMYK?
In RGB, #99ff00 is rgb(153, 255, 0), in HSL hsl(84, 100%, 50%) and in CMYK 40%, 0%, 100%, 0%.
What colors pair best with #99ff00 for a balanced design?
Pair #99ff00 with deep charcoal or matte black to ground its high intensity and ensure readability. For a bolder, energetic palette, combine it with deep violet or dark indigo to create a high-contrast, modern aesthetic that feels vibrant and professional.
Is #99ff00 suitable for primary text on a website?
Avoid using #99ff00 for body text as its extreme brightness causes eye strain and fails accessibility standards. It functions most effectively as a functional highlight, hover state, or call-to-action button color against a very dark background to maximize contrast and clarity.
Is #99ff00 readable on white or black?
#99ff00 has a 1.26:1 contrast ratio on white and 16.65:1 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.