I'm a firm believer that color matters, you have to remember are high lakes are so clear, there are 3 things to remember first water clarity, the position of the sun(angle the sun hits the water,cloudy,sunny day. Water temperatures has a big influence. Bitters 48 to 56 degrees. A kokanee looks up he see clarity of the water, the target,and angle and the sky,on a cloudy day kok are seeing grays and blacks, theory dark sky's use dark colors. Sun is up go to brighter colors, pinks,orange,etc. Water temp how many times has one fished all days and stated I fished all day threw everything I had couldn't get them to strike,It water temp. I picked up a fish hawk temp gauge. You drop it down in your body of water fishing it give you the water temp every 5 ft. I hit that magic temp. I may graph less fish but they are bitters. Phil Roberson wrote a book Why Colors Matters pick it up great reading and explains what ,when,how,color matters.Hope this may help.