Tartan Red
#b1282a
A red that is saturated. It is mid — the hardest range to put text on, either colour struggles.
Hex
#b1282a
RGB
177, 40, 42
OKLCh
50.1% 0.173 25.5°
CIELAB (D50)
40.3, 54.8, 35.0
What is true of this colour, and of no other
- 12 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 81.0; on black, Lc -20.9. 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 34.2 and 39.8 and 45.6 — no red cone.
Text on this colour
White text
6.55:1 — passes AA
Black text
3.21:1 — large text only
White text is the better of the two at6.55:1. That is enough for body text.
The same colour, with one cone missing
As you see it
#b1282a
protanopia
#4a4a2c · ΔE00 34.2
deuteranopia
#6a6a1f · ΔE00 39.8
tritanopia
#838300 · ΔE00 45.6
The twelve nearest named colours
Ranked by CIEDE2000 — perceptual distance, not hex arithmetic. The closest isCross My Heart at ΔE00 1.159: between 1 and 2 — a trained eye spots it when the two touch; nobody spots it across a room. What the numbers mean.
- Cross My HeartΔE00 1.159 · #ad2a2d
- Madder RedΔE00 1.45 · #b7282e
- Baton RougeΔE00 1.498 · #b8292b
- Fabulous RedΔE00 1.548 · #a92c29
- Upsdell RedΔE00 1.571 · #ae2029
- Red SquareΔE00 1.684 · #aa262a
- SalsaΔE00 1.697 · #b31928
- Brick by BrickΔE00 1.709 · #b22122
- ToadstoolΔE00 1.747 · #b8282f
- FirebrickΔE00 1.757 · #b22222
- SambaΔE00 1.835 · #aa262b
- Très BienΔE00 1.891 · #a82f2e
8 of these have no page of their own: pages exist for the 4,961 colours the dataset marks as good names.