Upset Tomato
#b52923
A red that is saturated. It is mid — the hardest range to put text on, either colour struggles.
Hex
#b52923
RGB
181, 41, 35
OKLCh
50.8% 0.177 28.0°
CIELAB (D50)
41.2, 55.5, 40.1
What is true of this colour, and of no other
- 13 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 85% 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 80.1; on black, Lc -21.7. 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 35.3 and 40.1 and 44.9 — no red cone.
Text on this colour
White text
6.35:1 — passes AA
Black text
3.31:1 — large text only
White text is the better of the two at6.35:1. That is enough for body text.
The same colour, with one cone missing
As you see it
#b52923
protanopia
#4c4c25 · ΔE00 35.3
deuteranopia
#6c6c14 · ΔE00 40.1
tritanopia
#868600 · ΔE00 44.9
The twelve nearest named colours
Ranked by CIEDE2000 — perceptual distance, not hex arithmetic. The closest isFlamingo Fervour at ΔE00 1.143: between 1 and 2 — a trained eye spots it when the two touch; nobody spots it across a room. What the numbers mean.
- Flamingo FervourΔE00 1.143 · #b42121
- Crisis RedΔE00 1.15 · #bb2222
- Fiery GarnetΔE00 1.159 · #b71e1e
- Cardinal’s CassockΔE00 1.18 · #b33125
- Red InfernoΔE00 1.352 · #bb1e1e
- FirebrickΔE00 1.42 · #b22222
- Scarlet BlazeΔE00 1.549 · #b21f1f
- Brick by BrickΔE00 1.559 · #b22122
- Siren ScarletΔE00 1.73 · #b21d1d
- Red RiderΔE00 1.836 · #b9271c
- CarnelianΔE00 1.843 · #b31b1b
- GinshuΔE00 1.894 · #bc2d29
8 of these have no page of their own: pages exist for the 4,961 colours the dataset marks as good names.