Highway to Hell
#cd1102
A red that is saturated. It is mid — the hardest range to put text on, either colour struggles.
Hex
#cd1102
RGB
205, 17, 2
OKLCh
53.7% 0.214 30.0°
CIELAB (D50)
44.2, 66.9, 58.7
What is true of this colour, and of no other
- 21 other named colours sit within ΔE00 2 of it — this part of the space is crowded, and the names here are finer distinctions than most people make.
- It sits exactly on the sRGB boundary: at this lightness and hue the gamut has nothing left, and a wider display would show a more colourful version of it.
- As text on white it measures APCA Lc 76.1; on black, Lc -25.6. 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 40.0 and 42.5 and 47.1 — no red cone.
Text on this colour
White text
5.71:1 — passes AA
Black text
3.68:1 — large text only
White text is the better of the two at5.71:1. That is enough for body text.
The same colour, with one cone missing
As you see it
#cd1102
protanopia
#4d4d0a · ΔE00 40.0
deuteranopia
#767600 · ΔE00 42.5
tritanopia
#969600 · ΔE00 47.1
The twelve nearest named colours
Ranked by CIEDE2000 — perceptual distance, not hex arithmetic. The closest isDiablo Red at ΔE00 0.192: below 1.0 — an ordinary observer cannot tell these apart, even side by side. What the numbers mean.
- Diablo RedΔE00 0.192 · #cd0d01
- Vampire State BuildingΔE00 0.345 · #cc1100
- Red EpiphyllumΔE00 0.607 · #d00000
- Thai ChilliΔE00 0.664 · #ce0001
- Soviet RedΔE00 0.708 · #cd0000
- Lannister RedΔE00 0.717 · #cd0101
- CommunistΔE00 0.852 · #cc0000
- Albanian RedΔE00 0.901 · #cc0001
- Rebellion RedΔE00 0.968 · #cc0404
- SignalΔE00 0.969 · #cc0002
- Scarlet GlowΔE00 1.157 · #cb0103
- Rosso CorsaΔE00 1.211 · #d40000
6 of these have no page of their own: pages exist for the 4,961 colours the dataset marks as good names.