#FF1800 Hex Color
Full-throttle red with zero restraint
Reach for #ff1800 when a call to action needs to stop the scroll. This red is fully saturated with barely any blue in it, so it reads hot and urgent instead of deep. Black text on it clears WCAG AA at about 5.4:1. Treat it as a small accent in your palette; as a full background it tires the eye fast.
Questions about #ff1800
What is #ff1800 in RGB, HSL and CMYK?
In RGB, #ff1800 is rgb(255, 24, 0), in HSL hsl(6, 100%, 50%) and in CMYK 0%, 91%, 100%, 0%.
What colors pair well with #ff1800?
Near-black and charcoal ground its heat best, while deep teal or navy gives a strong complementary push. Avoid large white fields next to it, which wash it out.
Is #ff1800 readable on white or black?
#ff1800 has a 3.90:1 contrast ratio on white and 5.38:1 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.