Red-Handed
#dd2233
A red that is saturated. It is mid — the hardest range to put text on, either colour struggles.
Hex
#dd2233
RGB
221, 34, 51
OKLCh
57.8% 0.217 23.9°
CIELAB (D50)
48.8, 69.1, 41.8
What is true of this colour, and of no other
- 5 other named colours sit within ΔE00 2 of it.
- It uses 93% 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 71.5; on black, Lc -30.2. 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 39.1 and 46.0 and 52.2 — no red cone.
Text on this colour
White text
4.83:1 — passes AA
Black text
4.35:1 — large text only
White text is the better of the two at4.83:1. That is enough for body text.
The same colour, with one cone missing
As you see it
#dd2233
protanopia
#575735 · ΔE00 39.1
deuteranopia
#828224 · ΔE00 46.0
tritanopia
#a3a300 · ΔE00 52.2
The twelve nearest named colours
Ranked by CIEDE2000 — perceptual distance, not hex arithmetic. The closest isFiery Red at ΔE00 1.048: between 1 and 2 — a trained eye spots it when the two touch; nobody spots it across a room. What the numbers mean.
- Fiery RedΔE00 1.048 · #dd1e2e
- AkumaΔE00 1.39 · #d63136
- Medium Candy Apple RedΔE00 1.418 · #e2062c
- Rare RedΔE00 1.47 · #dd1133
- AlizarinΔE00 1.55 · #e32636
- Royal Mail RedΔE00 2.086 · #da202a
- Incubation RedΔE00 2.091 · #da1d38
- Red HotΔE00 2.269 · #dd0033
- Chi-GongΔE00 2.293 · #d52b2d
- Blood MoonΔE00 2.309 · #d83432
- Whero RedΔE00 2.327 · #dd262b
- Amaranth RedΔE00 2.365 · #d3212d
10 of these have no page of their own: pages exist for the 4,961 colours the dataset marks as good names.