Crossing the Line
#dd2244
A red that is saturated. It is mid — the hardest range to put text on, either colour struggles.
Hex
#dd2244
RGB
221, 34, 68
OKLCh
58.0% 0.216 19.0°
CIELAB (D50)
49.0, 69.5, 32.0
What is true of this colour, and of no other
- 9 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 71.3; on black, Lc -30.4. 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 36.1 and 45.8 and 54.9 — no red cone.
Text on this colour
White text
4.79:1 — passes AA
Black text
4.39:1 — large text only
White text is the better of the two at4.79:1. That is enough for body text.
The same colour, with one cone missing
As you see it
#dd2244
protanopia
#575746 · ΔE00 36.1
deuteranopia
#82823a · ΔE00 45.8
tritanopia
#a3a300 · ΔE00 54.9
The twelve nearest named colours
Ranked by CIEDE2000 — perceptual distance, not hex arithmetic. The closest isBloody Rust at ΔE00 1.137: between 1 and 2 — a trained eye spots it when the two touch; nobody spots it across a room. What the numbers mean.
- Bloody RustΔE00 1.137 · #da2c43
- LollipopΔE00 1.361 · #d91e3f
- AnarchistΔE00 1.415 · #db304a
- Red HerringΔE00 1.433 · #dd1144
- Red Prickly PearΔE00 1.456 · #d92849
- Red PotionΔE00 1.509 · #dd143d
- Wild Rider RedΔE00 1.753 · #dc143c
- Cherry VelvetΔE00 1.785 · #e10646
- Lotti RedΔE00 1.811 · #e40046
- Cosmic RedΔE00 2.15 · #da244b
- Eternal CherryΔE00 2.211 · #dd0044
- Cruel RubyΔE00 2.336 · #dd3344
7 of these have no page of their own: pages exist for the 4,961 colours the dataset marks as good names.