Digital swatch
#640021
100 · 0 · 33
Vivid Red-Purple
棗紅
棗紅 is the Chinese color name catalogued for #640021 (RGB 100, 0, 33), a vivid red-purple. Its closest named colors in other languages are Dark scarlet (English) and Scarlatto scuro (Italian).
Color formats
Select any card to copy
One color, four coordinate systems
Across languages
ΔE = Lab distance from #640021
Closest named colors
Live accessibility check
Contrast lab
Choose a foreground color and verify its WCAG contrast against #640021.
Aa
Color should carry meaning — and remain readable.
—
contrast ratio
AAAAA
Related coordinates
Open any swatch
Color variations
Hue
Value
Chroma
Opposite
Analogous