When I was at Nike there was a fairly large team of Color Designers doing just this. Creating seasonal design strategies based on trend observations and user insights and applying them to multiple SKUs across price points and retail channels. Trolling around linkedIn for Color Designers at a place like Nike might be a place to start in regards to contacting a few people for advice. Send me a PM or an email and I can set you up with a couple of folks that might be able to point you in the right direction.
Also, the car industry is another great resource, there the position is typically called color and trim.