It's Not Retro. It's a mixture of old and new. The NFL have got it right on this one, when they go retro uniforms it's a chance to see the current team in a genuine old style. A chance to see the current players in an historic old uniform with all the history and nostalgia that brings. To me it's important to get the uniforms exactly authentic. That blue on the original photo is so wrong and obviously stick to the old logo. I'm sure if they do it this season they'll do it right and it will be great to see !
On the subject of Seahawks blue, can anyone tell me why the 12s flag has such an odd color blue ? It doesn't seem to be any blue they've ever played in. I always thought it was an attempt to reproduce the royal blue of the original uniform that had failed. The 12s flag is consistently that color, just wondered if anyone knew...