Sovereign Red
#ce243f
A red that is saturated. It is mid — the hardest range to put text on, either colour struggles.
Hex
#ce243f
RGB
206, 36, 63
OKLCh
55.4% 0.202 19.5°
CIELAB (D50)
46.0, 64.9, 30.7
What is true of this colour, and of no other
- 11 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 91% 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 74.7; on black, Lc -27.0. 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 35.0 and 44.0 and 52.8 — no red cone.
Text on this colour
White text
5.32:1 — passes AA
Black text
3.95:1 — large text only
White text is the better of the two at5.32:1. That is enough for body text.
The same colour, with one cone missing
As you see it
#ce243f
protanopia
#525241 · ΔE00 35.0
deuteranopia
#7a7a36 · ΔE00 44.0
tritanopia
#989800 · ΔE00 52.8
The twelve nearest named colours
Ranked by CIEDE2000 — perceptual distance, not hex arithmetic. The closest isLast Warning at ΔE00 1.426: between 1 and 2 — a trained eye spots it when the two touch; nobody spots it across a room. What the numbers mean.
- Last WarningΔE00 1.426 · #d30f3f
- Red PeppercornΔE00 1.561 · #c62d42
- Infrared FlushΔE00 1.606 · #cc3344
- Etruscan RedΔE00 1.618 · #c9303e
- Red IconΔE00 1.772 · #c93543
- Kurenai RedΔE00 1.803 · #d7003a
- Pepper JellyΔE00 1.876 · #cc2244
- True RedΔE00 1.924 · #c81a3a
- Crimson CloudΔE00 1.931 · #c32f40
- ToreadorΔE00 1.942 · #cd123f
- C-3POΔE00 1.963 · #c33140
- Karakurenai RedΔE00 2.032 · #c91f37
9 of these have no page of their own: pages exist for the 4,961 colours the dataset marks as good names.