Mix css colors.
var result = mixColors( [ 'red', 'blue'])
console.log(result) // #800080
// multiple colors
var result = mixColors( [ '#ff0000',
'#ffa500',
'#ffff00',
'#008000',
'#0000ff',
'#4b0082',
'#ee82ee' ]
)
console.log(result) // #9A6159