#F40007 Hex Color
A high-intensity red that commands attention
#f40007 is a high-intensity red that commands immediate attention. Its extreme saturation makes it overwhelming as a full background, so designers should reserve this hex code for small UI accents or critical call-to-action buttons. It maintains 4.8:1 contrast with black text, ensuring that important labels remain readable. Use it sparingly to guide user focus toward high-priority interactions without fatiguing the eye.
Questions about #f40007
What is #f40007 in RGB, HSL and CMYK?
In RGB, #f40007 is rgb(244, 0, 7), in HSL hsl(358, 100%, 48%) and in CMYK 0%, 100%, 97%, 4%.
Where should I use #f40007 in a digital interface?
Reserve #f40007 for high-priority interactive elements like alert banners, critical call-to-action buttons, or error states. Its extreme saturation makes it overwhelming for large backgrounds or text blocks, so use it sparingly to guide user attention toward the most important interactions.
Is #f40007 readable on white or black?
#f40007 has a 4.33:1 contrast ratio on white and 4.84:1 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.