I am not an active or knwoledgable user of SE Physics, but as person with a light form of color blindness (actually green/blue weakness), I wanted to bring this to Meta's attention:
The Color scheme, while certainly pleasing, relies heavily on subtle hues and I have difficulty in discerning these differences. I just clicked the "accepted" button for an answer five times because I have been unable to see a change, only the ALT-Text told me. This is an extreme example, but if it affects me (I hardly ever have problems with colors) I guess that users with a stronger form of color blindness will even be more challenged.
This could probably be fixed easly by not only changing hues, but also changing the brightness of the color. It would make for a far mor readable experienced for us spectrally challenged folks ;)
That's all I have to say. Have a good day!
PS: I found the old question, but I explicitly wanted to state that it is not only the Accept Button I'm having problems with