Purple and Violet are literally the same
Red and Rouge are literally the same
Bronze and Copper are just about the same
Cyan, teal and turquoise are just about the same(different shades/slight difference)
Lime and Green are close enough to be the same
Pink and Magenta could be the same
Cerulean is a shade of blue
Silver is no different than grey
Maroon is just dark red
Iridescent is not a color