HueComb

Fusion Red

#ff6163

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

Hex

#ff6163

RGB

255, 97, 99

OKLCh

69.8% 0.193 22.8°

CIELAB (D50)

63.0, 61.2, 32.6

What is true of this colour, and of no other

  • 4 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 55.0; on black, Lc -46.8. 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 35.9 and 43.1 and 52.8 — no red cone.

Text on this colour

White text

2.94:1 — fails AA

Black text

7.14:1 — passes AA

Black text is the better of the two at7.14:1. That is enough for body text.

As text on white, it needs to change

#d93c44 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

#ff6163

protanopia

#818164 · ΔE00 35.9

deuteranopia

#a5a55b · ΔE00 43.1

tritanopia

#c4c400 · ΔE00 52.8

Run a whole palette through all three

The twelve nearest named colours

Ranked by CIEDE2000 — perceptual distance, not hex arithmetic. The closest isPompelmo at ΔE00 0.866: 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.