#C40000 Hex Color
An intense, high-impact saturated red
#c40000 is an aggressive, saturated red that demands instant attention. Use this hex code sparingly as a 10 percent accent for calls to action rather than a dominant background. It pairs cleanly with stark whites and dark grays for high impact. With a 6.3:1 contrast ratio against white text, it remains accessible for readable messaging.
Questions about #c40000
What is #c40000 in RGB, HSL and CMYK?
In RGB, #c40000 is rgb(196, 0, 0), in HSL hsl(0, 100%, 38%) and in CMYK 0%, 100%, 100%, 23%.
How should #c40000 be used in professional design?
Use #c40000 sparingly as a ten percent accent color for primary call-to-action buttons or critical alerts rather than a dominant background. Because it is highly saturated, it commands immediate attention without needing to occupy large surface areas to be effective.
Is #c40000 readable on white or black?
#c40000 has a 6.27:1 contrast ratio on white and 3.34:1 on black. WCAG asks for 4.5:1 for body text and 3:1 for large text, so on white it works for body text and on black it works only for large text (24px, or 18.5px bold). Try other pairs in the contrast checker.