HueComb

Grapefruit

#fd5956

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

Hex

#fd5956

RGB

253, 89, 86

OKLCh

68.3% 0.200 25.0°

CIELAB (D50)

61.3, 63.1, 37.8

What is true of this colour, and of no other

  • 6 other named colours sit within ΔE00 2 of it.
  • It uses 98% 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 57.1; on black, Lc -44.6. 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 37.6 and 44.0 and 52.0 — no red cone.

Text on this colour

White text

3.12:1 — large text only

Black text

6.74:1 — passes AA

Black text is the better of the two at6.74:1. That is enough for body text.

As text on white, it needs to change

#dc383b 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

#fd5956

protanopia

#7b7b58 · ΔE00 37.6

deuteranopia

#a1a14d · ΔE00 44.0

tritanopia

#c1c100 · ΔE00 52.0

Run a whole palette through all three

The twelve nearest named colours

Ranked by CIEDE2000 — perceptual distance, not hex arithmetic. The closest isFluorescent Red at ΔE00 0.631: below 1.0 — an ordinary observer cannot tell these apart, even side by side. What the numbers mean.

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