title: Convert RGB color to CMYK?
body: <p>I'm looking for an algorithm to convert an RGB color to CMYK. Photoshop is performing the conversion below:</p>
  
  <p>R = 220
  G = 233
  B = 174</p>
  
  <p>C = 15
  M = 0
  Y = 40
  K = 0</p>