Radish
#a42e41
A red that is saturated. It is mid — the hardest range to put text on, either colour struggles.
Hex
#a42e41
RGB
164, 46, 65
OKLCh
48.7% 0.153 15.9°
CIELAB (D50)
38.8, 49.6, 18.3
What is true of this colour, and of no other
- 8 other named colours sit within ΔE00 2 of it.
- It uses 79% of the chroma sRGB can show at this lightness and hue.
- As text on white it measures APCA Lc 82.7; on black, Lc -19.2. 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 28.4 and 36.3 and 47.2 — no red cone.
Text on this colour
White text
6.90:1 — passes AA
Black text
3.05:1 — large text only
White text is the better of the two at6.90:1. That is enough for body text.
The same colour, with one cone missing
As you see it
#a42e41
protanopia
#494942 · ΔE00 28.4
deuteranopia
#64643c · ΔE00 36.3
tritanopia
#7b7b00 · ΔE00 47.2
The twelve nearest named colours
Ranked by CIEDE2000 — perceptual distance, not hex arithmetic. The closest isRomeo O Romeo at ΔE00 1.613: between 1 and 2 — a trained eye spots it when the two touch; nobody spots it across a room. What the numbers mean.
- Romeo O RomeoΔE00 1.613 · #a4233c
- Bright LadyΔE00 1.629 · #9f3645
- Toasted TruffleΔE00 1.708 · #aa3344
- Vintage RedΔE00 1.79 · #9e3641
- Wine & RosesΔE00 1.818 · #a33540
- BresaolaΔE00 1.821 · #a9203e
- American BeautyΔE00 1.833 · #a73340
- Pop of PoppyΔE00 1.982 · #a13741
- Roses Are RedΔE00 2.1 · #aa3646
- Dòu Shā Sè RedΔE00 2.212 · #a52939
- Alabama CrimsonΔE00 2.239 · #a32638
- Velvet CakeΔE00 2.325 · #9d253d
10 of these have no page of their own: pages exist for the 4,961 colours the dataset marks as good names.