Blood of My Enemies

#e0413a

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

Hex

#e0413a

RGB

224, 65, 58

OKLCh

60.8% 0.197 27.3°

CIELAB (D50)

52.5, 61.7, 41.9

What is true of this colour, and of no other

5 other named colours sit within ΔE00 2 of it.
It uses 80% of the chroma sRGB can show at this lightness and hue.
As text on white it measures APCA Lc 67.8; on black, Lc -33.9. 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 38.0 and 43.2 and 49.1 — no red cone.

Text on this colour

White text

4.21:1 — large text only

Black text

4.99:1 — passes AA

Black text is the better of the two at4.99:1. That is enough for body text.

As text on white, it needs to change

#da3b35 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

#e0413a

protanopia

#65653c · ΔE00 38.0

deuteranopia

#8a8a2e · ΔE00 43.2

tritanopia

#a9a900 · 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 isRose Madder at ΔE00 1.352: between 1 and 2 — a trained eye spots it when the two touch; nobody spots it across a room. What the numbers mean.

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