#FC0000 Hex Color
A high-octane red demanding instant attention

Blazing with pure intensity, #fc0000 demands immediate attention. This high-saturation red is nearly impossible to ignore, making it ideal for critical UI accents or urgent calls to action. Because of its extreme brightness, use it sparingly as a 10% highlight rather than a background. Black text remains readable against this hex code, though large blocks of this color can easily overwhelm the eye.
Questions about #fc0000
What is #fc0000 in RGB, HSL and CMYK?
In RGB, #fc0000 is rgb(252, 0, 0), in HSL hsl(0, 100%, 49%) and in CMYK 0%, 100%, 100%, 1%.
Where should I use #fc0000 in a UI design?
#fc0000 is best reserved for critical alerts, error states, or limited-time conversion buttons. Because of its extreme saturation, applying it as a small, focused highlight ensures it commands attention without overwhelming your interface or fatiguing the user's eye.
What colors pair well with #fc0000?
Is #fc0000 readable on white or black?
#fc0000 has a 4.08:1 contrast ratio on white and 5.13:1 on black. WCAG asks for 4.5:1 for body text and 3:1 for large text, so on white it works only for large text (24px, or 18.5px bold) and on black it works for body text. Try other pairs in the contrast checker.