npm

xorgrgb

X.Org color names database for looking up RGB values by color name.

brewmacoslinux
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Source

About

X.Org: color names database

Commands

rgb

Examples

find RGB values for a color name$ rgb red
search for all shades of blue colors$ rgb blue
look up hex code for a named color$ rgb -l | grep -i darkgreen
show all available color names in database$ rgb -l
find color by RGB value$ rgb 255 0 0