HueComb

Warming Heart

#d44b3b

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

Hex

#d44b3b

RGB

212, 75, 59

OKLCh

59.9% 0.175 29.8°

CIELAB (D50)

51.8, 54.1, 39.8

What is true of this colour, and of no other

  • 10 other named colours sit within ΔE00 2 of it — this part of the space is crowded, and the names here are finer distinctions than most people make.
  • It uses 73% of the chroma sRGB can show at this lightness and hue.
  • As text on white it measures APCA Lc 68.9; on black, Lc -32.8. 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 35.6 and 40.0 and 45.7 — no red cone.

Text on this colour

White text

4.31:1 — large text only

Black text

4.87:1 — passes AA

Black text is the better of the two at4.87:1. That is enough for body text.

As text on white, it needs to change

#d04838 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

#d44b3b

protanopia

#67673d · ΔE00 35.6

deuteranopia

#878731 · ΔE00 40.0

tritanopia

#a2a200 · ΔE00 45.7

Run a whole palette through all three

The twelve nearest named colours

Ranked by CIEDE2000 — perceptual distance, not hex arithmetic. The closest isRed Lightning at ΔE00 0.866: below 1.0 — an ordinary observer cannot tell these apart, even side by side. What the numbers mean.

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