If he's in blue he gets to spend more time with 7. BUT the Delaney sisters are probably less interested in him.
I just don't think it's his colour. Now if there was a mauve it might work.
Here's the thing though. Kim would have been less fail in blue. Because people make excuses for science. All he would have to do is come up with a few clever ideas and look sheepish. He could have been COMPLETELY RECAST as the affable and somewhat dorky blue guy.