Plum Perfect
#aa1155
A pink that is saturated. It is mid — the hardest range to put text on, either colour struggles.
Hex
#aa1155
RGB
170, 17, 85
OKLCh
48.2% 0.186 2.5°
CIELAB (D50)
37.7, 59.9, 4.2
What is true of this colour, and of no other
- One other named colour sits within ΔE00 2 of it.
- It uses 95% 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 83.0; on black, Lc -18.9. 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 28.9 and 34.7 and 56.2 — no red cone.
Text on this colour
White text
7.19:1 — passes AA
Black text
2.92:1 — fails AA
White text is the better of the two at7.19:1. That is enough for body text.
The same colour, with one cone missing
As you see it
#aa1155
protanopia
#3f3f56 · ΔE00 28.9
deuteranopia
#626251 · ΔE00 34.7
tritanopia
#7c7c00 · ΔE00 56.2
The twelve nearest named colours
Ranked by CIEDE2000 — perceptual distance, not hex arithmetic. The closest isShy Guy Red at ΔE00 0.984: below 1.0 — an ordinary observer cannot tell these apart, even side by side. What the numbers mean.
- Shy Guy RedΔE00 0.984 · #aa0055
- Violet RedΔE00 2.019 · #a50055
- Cherries JubileeΔE00 2.092 · #a22452
- Hydrangea RedΔE00 2.516 · #9e194d
- CeriseΔE00 2.636 · #ad134e
- Murderous MagentaΔE00 2.858 · #b3205f
- VivaciousΔE00 2.893 · #a7295f
- Parlour RedΔE00 3.31 · #a12d5d
- Cherry PlumΔE00 3.357 · #a10047
- Celestial PinkΔE00 3.448 · #9c004a
- Purplish RedΔE00 3.5 · #b0054b
- BerryΔE00 3.552 · #990f4b
10 of these have no page of their own: pages exist for the 4,961 colours the dataset marks as good names.