100 Mph
#c93f38
A red that is saturated. It is mid — the hardest range to put text on, either colour struggles.
Hex
#c93f38
RGB
201, 63, 56
OKLCh
56.7% 0.176 27.2°
CIELAB (D50)
48.0, 55.0, 36.7
What is true of this colour, and of no other
- 8 other named colours sit within ΔE00 2 of it.
- It uses 76% of the chroma sRGB can show at this lightness and hue.
- As text on white it measures APCA Lc 73.1; on black, Lc -28.6. 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 35.1 and 40.2 and 46.6 — no red cone.
Text on this colour
White text
4.94:1 — passes AA
Black text
4.25:1 — large text only
White text is the better of the two at4.94:1. That is enough for body text.
The same colour, with one cone missing
As you see it
#c93f38
protanopia
#5d5d3a · ΔE00 35.1
deuteranopia
#7d7d2e · ΔE00 40.2
tritanopia
#989800 · ΔE00 46.6
The twelve nearest named colours
Ranked by CIEDE2000 — perceptual distance, not hex arithmetic. The closest isRebel Red at ΔE00 1.471: between 1 and 2 — a trained eye spots it when the two touch; nobody spots it across a room. What the numbers mean.
- Rebel RedΔE00 1.471 · #cd4035
- Chef’s KissΔE00 1.499 · #cc3b3b
- Persian RedΔE00 1.716 · #cc3333
- Smouldering RedΔE00 1.754 · #ca3434
- Young MahoganyΔE00 1.845 · #ca3435
- Oh so RedΔE00 1.853 · #c74536
- StopΔE00 1.874 · #c33a36
- Madder LakeΔE00 1.99 · #cc3336
- ChucklesΔE00 2.044 · #bf413a
- Caught Red-HandedΔE00 2.223 · #be4236
- Red ClownΔE00 2.229 · #d43e38
- Blade Runner RedΔE00 2.237 · #d43c35
8 of these have no page of their own: pages exist for the 4,961 colours the dataset marks as good names.