Color isn't a factor for me, but I do like it if the color matches the scent. The don't usually know if the cream/soap is colored anyways until after I've purchased it.
I voted for coloured soaps, but only if the colour evokes thoughts of the scent as per your example of lime<->green
Dang! I'd hate to hear his take on coffee, chocolate pudding, hot chocolate, refried beans and other brown items ...Yikes that sounds a little harsh. I really wonder if the sample was somehow contaminated. I haven't had the opportunity to try their soaps but the lather appears white in photos and video reviews.