gistfile1.coffee

  getRandomColor: ->
    number = Math.floor(Math.random() * (3 - 1 + 1)) + 1
    switch number
      when 1 then "#983a30"
      when 2 then "#187598"

# why not

getRandomColor: -> ["#983a30", "#187598"][Math.ceil(Math.random() * 3)]

getRandomColor: -> ["#983a30", "#187598"][Math.ceil(Math.random()*2)-1]

Math.floor(Math.random() * 2) && 0x983a30 || 0x187598

getRandomItem (list) -> list[~~(Math.random()*list.length)]

... more extensible, better abstraction and design. Or if you want to get really crazy:

Array.prototype.getRandom = -> this[~~(Math.random()*this.length)]
# ["#983a30", "#187598"].getRandom()