#F0FD4F Hex Color
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#f0fd4f is a luminous, high-energy yellow that demands attention. Because of its extreme brightness, it functions best as a tactical 10% accent rather than a full background color. It pairs surprisingly well with deep charcoal or slate greys, which ground its intensity. The hex code for this piercing yellow is #f0fd4f. Use it sparingly to inject spontaneity or highlight specific sale items in UI design.
Questions about #f0fd4f
What is #f0fd4f in RGB, HSL and CMYK?
In RGB, #f0fd4f is rgb(240, 253, 79), in HSL hsl(64, 98%, 65%) and in CMYK 5%, 0%, 69%, 1%.
How should I use #f0fd4f effectively in UI design?
Treat #f0fd4f as a 10% accent color rather than a background shade because of its extreme brightness. It works best to draw eyes toward call-to-action buttons or highlights when contrasted against deep, dark tones like charcoal or slate.
Does #f0fd4f lean warm or cool in color theory?
This shade is firmly warm, carrying a high-intensity, sun-like quality that pushes it away from greener yellow variations. Its extreme luminosity makes it feel like an artificial light source, which helps it stand out against standard web palettes.
Is #f0fd4f readable on white or black?
#f0fd4f has a 1.11:1 contrast ratio on white and 18.86:1 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.