Vampire Fiction

#9b0f11

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

Hex

#9b0f11

RGB

155, 15, 17

OKLCh

44.0% 0.171 27.7°

CIELAB (D50)

33.3, 53.8, 40.6

What is true of this colour, and of no other

  • 17 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 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 87.2; on black, Lc -14.9. 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 34.2 and 38.5 and 42.0 — no red cone.

Text on this colour

White text

8.50:1 — passes AA

Black text

2.47:1 — fails AA

White text is the better of the two at8.50:1. That is enough for body text.

The same colour, with one cone missing

As you see it

#9b0f11

protanopia

#393914 · ΔE00 34.2

deuteranopia

#595900 · ΔE00 38.5

tritanopia

#717100 · ΔE00 42.0

Run a whole palette through all three

The twelve nearest named colours

Ranked by CIEDE2000 — perceptual distance, not hex arithmetic. The closest isCarnivore at ΔE00 0.374: below 1.0 — an ordinary observer cannot tell these apart, even side by side. What the numbers mean.

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