#F5FF00 Hex Color
A high-voltage yellow for bold accents
This luminous yellow commands immediate attention with its high saturation. #f5ff00 functions best as a striking accent for call-to-action buttons rather than a background color. Black text remains perfectly readable against this shade, offering a 19.2:1 contrast ratio that ensures strong accessibility. Pair it with deep charcoals to ground the intensity. The hex code for this energetic tone is #f5ff00.
Questions about #f5ff00
What is #f5ff00 in RGB, HSL and CMYK?
In RGB, #f5ff00 is rgb(245, 255, 0), in HSL hsl(62, 100%, 50%) and in CMYK 4%, 0%, 100%, 0%.
Why is #f5ff00 challenging to use as a background color?
The intense brightness of #f5ff00 causes significant eye strain when covering large surface areas, making it unsuitable for backgrounds. It serves best as a targeted call-to-action or accent color where its high visibility can actually improve user interaction.
What colors pair well with the intensity of #f5ff00?
Deep neutral tones like charcoal provide the necessary weight to ground the vibrating energy of #f5ff00. Using dark, matte colors prevents the yellow from overwhelming your design while maintaining the high contrast ratio needed for clear, accessible text.
Is #f5ff00 readable on white or black?
#f5ff00 has a 1.09:1 contrast ratio on white and 19.18:1 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.