Color Blindness and HP Prime keys color choice

[HP67]

(01-14-2014 08:57 PM)Eddie W. Shore Wrote:  I also wouldn't mind if HP returned to the 48S color scheme, which had excellent contrast.

Yes, it is my favorite by far of post 1980 models. Very legible, and very nice looking.

(01-14-2014 08:58 PM)Eddie W. Shore Wrote:  What do you think of the green/purple scheme like on the 48G series?

I don't like it. I find it hard to see. I think most of us HP calculator fans are old enough that minor stuff like being able to see is not to be taken for granted! The S model was much easier on the eyes.