We always do try to take color-blindness into account, basically by trying not to rely on color, or at least using highly contrasting colors when possible. However, we don't actually have any colorblind people to test with, so this feedback is very valuable!
I wonder if there is anything subtle we can do to alleviate this issue, or if it's minor enough that it's not worth a change? Please do let us know if there are any other color issues that you notice! We have thought about adding a colorblind mode, but ideally we'd just make it work right for all users by default.
The history board is a different shade of blue to the table (it's a sort of dark aquamarine, ~20/70/128). If you can make the history board black or light grey, it would alleviate the issue with the red letters. The rest of the table and color scheme is fine, although I am somewhat surprised that you would choose blue as your main color. Research has shown that color has a huge effect on emotions, and considering that your main source of revenue is people staring at your color scheme for hours on end, I would guess this effect is accentuated tenfold. Would a bright, cheerful color scheme not be better suited to motivate risktaking?