Stop
#c33a36
A red that is saturated. It is mid — the hardest range to put text on, either colour struggles.
Hex
#c33a36
RGB
195, 58, 54
OKLCh
55.1% 0.174 26.4°
CIELAB (D50)
46.2, 54.8, 35.5
What is true of this colour, and of no other
- 11 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 uses 78% of the chroma sRGB can show at this lightness and hue.
- As text on white it measures APCA Lc 75.1; on black, Lc -26.7. 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 34.7 and 40.1 and 46.6 — no red cone.
Text on this colour
White text
5.28:1 — passes AA
Black text
3.98:1 — large text only
White text is the better of the two at5.28:1. That is enough for body text.
The same colour, with one cone missing
As you see it
#c33a36
protanopia
#595938 · ΔE00 34.7
deuteranopia
#79792c · ΔE00 40.1
tritanopia
#939300 · ΔE00 46.6
The twelve nearest named colours
Ranked by CIEDE2000 — perceptual distance, not hex arithmetic. The closest isFlirt Alert at ΔE00 0.958: below 1.0 — an ordinary observer cannot tell these apart, even side by side. What the numbers mean.
- Flirt AlertΔE00 0.958 · #be3c37
- ChucklesΔE00 1.206 · #bf413a
- Crimson GlowΔE00 1.247 · #c13939
- Smouldering RedΔE00 1.302 · #ca3434
- Young MahoganyΔE00 1.321 · #ca3435
- Aurora RedΔE00 1.407 · #c13435
- Persian RedΔE00 1.671 · #cc3333
- Madder LakeΔE00 1.727 · #cc3336
- Naughty HottieΔE00 1.824 · #ba403a
- Caught Red-HandedΔE00 1.855 · #be4236
- 100 MphΔE00 1.874 · #c93f38
- Peri PeriΔE00 2.076 · #c62d2c
6 of these have no page of their own: pages exist for the 4,961 colours the dataset marks as good names.