HueComb

Cascara

#ee4433

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

Hex

#ee4433

RGB

238, 68, 51

OKLCh

63.3% 0.209 29.7°

CIELAB (D50)

55.4, 64.9, 49.6

What is true of this colour, and of no other

  • 3 other named colours sit within ΔE00 2 of it.
  • It uses 83% of the chroma sRGB can show at this lightness and hue.
  • As text on white it measures APCA Lc 64.2; on black, Lc -37.4. 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 40.0 and 44.4 and 49.1 — no red cone.

Text on this colour

White text

3.81:1 — large text only

Black text

5.51:1 — passes AA

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

As text on white, it needs to change

#df3425 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

#ee4433

protanopia

#6b6b36 · ΔE00 40.0

deuteranopia

#939321 · ΔE00 44.4

tritanopia

#b3b300 · ΔE00 49.1

Run a whole palette through all three

The twelve nearest named colours

Ranked by CIEDE2000 — perceptual distance, not hex arithmetic. The closest isVermilion Bird at ΔE00 0.769: 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.