CoffeeScript Shade and Tint color without Alpha channel

shadeAndTint.coffee

toRgb = (hex) ->
  result = /^#?([a-f\d]{2})([a-f\d]{2})([a-f\d]{2})$/i.exec(hex)
  
  if result
    [
      parseInt(result[1], 16)
      parseInt(result[2], 16)
      parseInt(result[3], 16)
    ]
  else
    null


mix = (src, target, mix) ->
  [
    Math.floor(target[0] + (src - target[0]) * mix)
    Math.floor(target[1] + (src - target[1]) * mix)
    Math.floor(target[2] + (src - target[2]) * mix)
  ]

shade = (target, m) -> mix 0, target, m
tint = (target, m) -> mix 255, target, m


# Test
rgb = [
  255
  10
  10
]

a = '#FF0101'
console.log(
  "#{a} to #{toRgb(a)} =>"
  "Shade #{shade(toRgb(a), 0.33)}"
 "Tint #{tint(toRgb(a), 0.33)}"
)

# http://hex.colorrrs.com/

For testing
http://hex.colorrrs.com/