Sugo Della Nonna

#a32e1d

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

Hex

#a32e1d

RGB

163, 46, 29

OKLCh

47.9% 0.156 31.3°

CIELAB (D50)

38.2, 48.0, 39.1

What is true of this colour, and of no other

  • 4 other named colours sit within ΔE00 2 of it.
  • It uses 84% of the chroma sRGB can show at this lightness and hue.
  • As text on white it measures APCA Lc 83.4; on black, Lc -18.6. 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 32.8 and 36.5 and 40.3 — no red cone.

Text on this colour

White text

7.08:1 — passes AA

Black text

2.97:1 — fails AA

White text is the better of the two at7.08:1. That is enough for body text.

The same colour, with one cone missing

As you see it

#a32e1d

protanopia

#48481f · ΔE00 32.8

deuteranopia

#64640f · ΔE00 36.5

tritanopia

#7a7a00 · ΔE00 40.3

Run a whole palette through all three

The twelve nearest named colours

Ranked by CIEDE2000 — perceptual distance, not hex arithmetic. The closest isJaipur at ΔE00 1.199: between 1 and 2 — a trained eye spots it when the two touch; nobody spots it across a room. What the numbers mean.

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