Lusty Lips

#d5174e

A pink that is saturated. It is mid — the hardest range to put text on, either colour struggles.

Hex

#d5174e

RGB

213, 23, 78

OKLCh

56.3% 0.215 13.7°

CIELAB (D50)

46.8, 69.7, 22.8

What is true of this colour, and of no other

  • 7 other named colours sit within ΔE00 2 of it.
  • It uses 96% 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 73.5; on black, Lc -28.2. 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 30.7 and 44.6 and 57.1 — no red cone.

Text on this colour

White text

5.17:1 — passes AA

Black text

4.06:1 — large text only

White text is the better of the two at5.17:1. That is enough for body text.

The same colour, with one cone missing

As you see it

#d5174e

protanopia

#51514f · ΔE00 30.7

deuteranopia

#7c7c46 · ΔE00 44.6

tritanopia

#9c9c00 · ΔE00 57.1

Run a whole palette through all three

The twelve nearest named colours

Ranked by CIEDE2000 — perceptual distance, not hex arithmetic. The closest isElectrifying Kiss at ΔE00 0.306: below 1.0 — an ordinary observer cannot tell these apart, even side by side. What the numbers mean.

7 of these have no page of their own: pages exist for the 4,961 colours the dataset marks as good names.