#AD0404 Hex Color
Dark Red with a Burning Edge

Dark and heavily saturated, #ad0404 is a red that burns instead of glows. It carries real heat and urgency, which makes it strong as a call-to-action button or accent, and trickier as a full background. White text clears WCAG AA on it with room to spare, and a muted gold or charcoal pairing keeps it from shouting.
Questions about #ad0404
What is #ad0404 in RGB, HSL and CMYK?
In RGB, #ad0404 is rgb(173, 4, 4), in HSL hsl(0, 95%, 35%) and in CMYK 0%, 98%, 98%, 32%.
What colors pair well with #ad0404?
Muted gold, charcoal, and soft cream all balance the intensity of #ad0404. Cool navy tones calm it down, while warm peach keeps the palette hot without competing for attention.
Is #ad0404 readable on white or black?
#ad0404 has a 7.51:1 contrast ratio on white and 2.79:1 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 is too faint for text. Try other pairs in the contrast checker.