Pure Passion
#b40039
A pink that is saturated. It is mid — the hardest range to put text on, either colour struggles.
Hex
#b40039
RGB
180, 0, 57
OKLCh
48.9% 0.196 15.6°
CIELAB (D50)
38.6, 63.2, 23.9
What is true of this colour, and of no other
- 7 other named colours sit within ΔE00 2 of it.
- 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 81.6; on black, Lc -20.2. 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 30.9 and 42.4 and 52.2 — no red cone.
Text on this colour
White text
7.00:1 — passes AA
Black text
3.00:1 — fails AA
White text is the better of the two at7.00:1. That is enough for body text.
The same colour, with one cone missing
As you see it
#b40039
protanopia
#40403a · ΔE00 30.9
deuteranopia
#666631 · ΔE00 42.4
tritanopia
#838300 · ΔE00 52.2
The twelve nearest named colours
Ranked by CIEDE2000 — perceptual distance, not hex arithmetic. The closest isWarlock Red at ΔE00 0.469: below 1.0 — an ordinary observer cannot tell these apart, even side by side. What the numbers mean.
- Warlock RedΔE00 0.469 · #b50038
- M. BisonΔE00 1.163 · #b4023d
- RougeΔE00 1.61 · #ab1239
- Bindi RedΔE00 1.626 · #b0003c
- Ruby QueenΔE00 1.657 · #b0063d
- Red Tuna FruitΔE00 1.781 · #b41b40
- Chilli PepperΔE00 1.837 · #ac1e3a
- Vinho do PortoΔE00 2.009 · #b31a38
- ChernobogΔE00 2.075 · #ac0132
- Traditional RoseΔE00 2.111 · #be013c
- Hot LavaΔE00 2.165 · #aa0033
- Melancholic MacawΔE00 2.311 · #aa1133
6 of these have no page of their own: pages exist for the 4,961 colours the dataset marks as good names.