King Crimson
#c64a4a
Slightly subdued crimson-orange for decisive section headers
About King Crimson
King Crimson always reads like a controlled burn to me. Same family as those oranges, but it's redder and deeper, with a heavier, inkier feel than Autumn Fire's brighter warmth and Bloody Salmon's meatier blush. Where 100 Mph goes sharp and urgent, this one holds the temperature down a notch so it feels more contained, less reactive.
In UI, I use it for high-visibility accents that still look deliberate: campaign warning headers, return-to-cart callouts, and bold section titles in e-commerce admin panels. It also lands well in dashboards and finance apps where you want attention without the harshness of a more "stop-the-presses" orange. It's the kind of tone that looks good against cream cards and cool grays, especially for status chips, payment flow steps, and editorial feature tags.
One quirk: on very warm backgrounds it can start to look closer to a muted brick than a true orange, so it's worth testing next to your base palette early.
Code snippets
Copy this color into your project.
Contrast checker
WCAG 2.1 contrast ratios. AA requires 4.5:1 for normal text, 3:1 for large. AAA requires 7:1 / 4.5:1.
On White #ffffff
On Gray 100 #f5f5f5
On Gray 900 #18181b
On Black #000000
Variations
Shades
Darker variations, created by mixing toward black.
Tints
Lighter variations, created by mixing toward white.
Tones
Muted variations, created by reducing saturation.
Hues
Hue rotations around the color wheel.
Temperatures
Warm and cool shifts of this color.
Color harmonies
Suggested palettes
Palettes built around this color.
Community palettes
Published palettes that include this color.