Sacrifice Altar
#850101
Oxidized blood orange for high-contrast warnings
About Sacrifice Altar
Sacrifice Altar is the red I keep seeing on older fire-station signage where the sun has taken the edge off. It sits in the orange-family lane, but unlike the sharper, more obvious reds nearby, this one feels more burnt and authoritative than loud.
Compared to Dark Red, it's less "lacquer in shade" and more soot-warmed, with a firmer orange undertone. Compared to Indian Red, it holds onto clarity instead of turning papery and gritty. And next to Red Devil, it's deeper and more disciplined, not as saturated in your face. I use it for industrial safety labels, lab and pharma packaging callouts, and UI states that need "do not proceed" without slipping into wine-burgundy mood or rusty drift. It also works well for production dashboards and logistics portals where the red has to read fast on dark backdrops.
Pair it with off-whites, iron gray, or muted umbers. On bright cool grays it can start to feel a touch heavier than you want, so I'd warm the surrounding neutrals.
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.