convert rgba color to hex color

jqplot_hex_colors

require 'color'

jqplot_colors = [
    "240, 192,  19, 1",
    "217, 135,  20, 1",
    " 16, 178, 199, 1",
    " 15, 153, 168, 1",
    "235, 155, 220, 1",
    "247,  57, 197, 1",
    "220, 237, 203, 1",
    "239, 242, 143, 1",
    " 72, 171, 154, 1",
    " 16, 178, 199, 1",

    "144, 198, 198, 1",
    "117, 215, 124, 1",
    "222, 203,  45, 1",
    "222, 141,  45, 1",
    "222, 108,  45, 1"
]

hex_colors = jqplot_colors.collect do |rgb|
  rgba = rgb.split(',')
  rgb = rgba[0..-1].collect { |c| c.strip.to_i }
  Color::RGB.new(rgb[0], rgb[1], rgb[2]).html
end