#EFEF13 Hex Color

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Hex color #efef13 graphic
Aggressive and luminous, #efef13 is a high-saturation yellow that demands instant attention. Because this shade is so visually intense, it works best as a 10% accent color for call-to-action buttons or warnings rather than a primary background. It pairs exceptionally well with charcoal gray or deep black, which provide the necessary contrast for readability. The hex code for this neon yellow is #efef13.

Questions about #efef13

What is #efef13 in RGB, HSL and CMYK?
In RGB, #efef13 is rgb(239, 239, 19), in HSL hsl(60, 87%, 51%) and in CMYK 0%, 0%, 92%, 6%. Browse more shades of yellow with names and hex codes.
How should I use #efef13 in a design layout?
Use #efef13 sparingly as a 10% accent color rather than a background. Because this neon yellow is so visually intense, it commands attention and works best for call-to-action buttons or warning indicators that need to pop against neutral interfaces.
Is #efef13 readable on white or black?
#efef13 has a 1.23:1 contrast ratio on white and 17.02:1 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.