HueComb

Coral

#ff7f50

A red that is saturated. It is light — black text sits on it comfortably, white text does not.

Hex

#ff7f50

RGB

255, 127, 80

OKLCh

73.5% 0.168 40.2°

CIELAB (D50)

68.0, 47.4, 48.6

What is true of this colour, and of no other

  • 8 other named colours sit within ΔE00 2 of it.
  • It sits exactly on the sRGB boundary: at this lightness and hue the gamut has nothing left, and a wider display would show a more colourful version of it.
  • As text on white it measures APCA Lc 48.5; on black, Lc -53.5. 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 34.1 and 36.9 and 41.6 — no red cone.

Text on this colour

White text

2.50:1 — fails AA

Black text

8.40:1 — passes AA

Black text is the better of the two at8.40:1. That is enough for body text.

As text on white, it needs to change

#ca4f1c is the nearest colour of the same hue that passes AA on white, at 4.50:1. Only the lightness moved.

Try it against your own background

The same colour, with one cone missing

As you see it

#ff7f50

protanopia

#959552 · ΔE00 34.1

deuteranopia

#b2b247 · ΔE00 36.9

tritanopia

#cccc00 · ΔE00 41.6

Run a whole palette through all three

The twelve nearest named colours

Ranked by CIEDE2000 — perceptual distance, not hex arithmetic. The closest isNārangī Orange at ΔE00 0.325: 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.