Peri Peri

#c62d2c

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

Hex

#c62d2c

RGB

198, 45, 44

OKLCh

54.3% 0.190 26.6°

CIELAB (D50)

45.1, 59.7, 40.3

What is true of this colour, and of no other

  • 9 other named colours sit within ΔE00 2 of it.
  • It uses 86% 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 76.0; on black, Lc -25.8. 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 36.6 and 42.1 and 47.7 — no red cone.

Text on this colour

White text

5.51:1 — passes AA

Black text

3.81:1 — large text only

White text is the better of the two at5.51:1. That is enough for body text.

The same colour, with one cone missing

As you see it

#c62d2c

protanopia

#53532e · ΔE00 36.6

deuteranopia

#77771e · ΔE00 42.1

tritanopia

#939300 · ΔE00 47.7

Run a whole palette through all three

The twelve nearest named colours

Ranked by CIEDE2000 — perceptual distance, not hex arithmetic. The closest isKnockout at ΔE00 0.844: below 1.0 — an ordinary observer cannot tell these apart, even side by side. What the numbers mean.

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