Fire Bolt
#cc4411
A red that is saturated. It is mid — the hardest range to put text on, either colour struggles.
Hex
#cc4411
RGB
204, 68, 17
OKLCh
57.4% 0.181 37.7°
CIELAB (D50)
49.0, 53.3, 56.2
What is true of this colour, and of no other
- 6 other named colours sit within ΔE00 2 of it.
- It uses 96% of the chroma sRGB can show at this lightness and hue — close enough to the boundary that a wider display would show it slightly more vividly.
- As text on white it measures APCA Lc 72.0; on black, Lc -29.7. The sign is the polarity, which the WCAG ratio discards.
- Built into an eleven-step scale, 10 of the 10 adjacent pairs stay ΔE00 2 apart — see the ramp.
- protanopia and deuteranopia and tritanopia shift it by ΔE00 36.0 and 37.9 and 41.2 — no red cone.
Text on this colour
White text
4.77:1 — passes AA
Black text
4.40:1 — large text only
White text is the better of the two at4.77:1. That is enough for body text.
The same colour, with one cone missing
As you see it
#cc4411
protanopia
#616116 · ΔE00 36.0
deuteranopia
#808000 · ΔE00 37.9
tritanopia
#9b9b00 · ΔE00 41.2
The twelve nearest named colours
Ranked by CIEDE2000 — perceptual distance, not hex arithmetic. The closest isSinopia at ΔE00 0.732: below 1.0 — an ordinary observer cannot tell these apart, even side by side. What the numbers mean.
- SinopiaΔE00 0.732 · #cb410b
- Tennis CourtΔE00 1.179 · #c8450c
- Lava SmoothieΔE00 1.39 · #d04014
- Mellow MangoΔE00 1.856 · #cc4400
- Sauce PiquanteΔE00 1.896 · #ca3f16
- Red PandaΔE00 1.904 · #c34b1b
- Ōkaihau ExpressΔE00 2.177 · #cd4600
- Vinaceous TawnyΔE00 2.197 · #c74300
- Native Hue of ResolutionΔE00 2.482 · #d33300
- Flame of PrometheusΔE00 2.761 · #db3c02
- Pleasant PomegranateΔE00 2.845 · #cc3300
- Torii RedΔE00 2.86 · #db3e00
6 of these have no page of their own: pages exist for the 4,961 colours the dataset marks as good names.