Unable to tell the difference between Tahm Kench's Grey and normal HP.
I am colorblind (Protanomaly), and I can't tell the difference between an enemy Tahm Kench's Grey and normal HP. It means I don't know how much damage he is taking until he activates his shield. Colorblind mode doesn't help.
Looking at the color's hex codes, the issue is immediately apparent. A sample of the normal hp shows 0x9D2D2A, and a sample of the grey hp shows 0x44362A. The colors are about the same except that the red component is greater in normal HP. Since the red component of colors is reduced for me (which is why purple looks the same as blue, gold looks the same as green, etc), a red-tinted grey looks the same as grey for me.
I contacted support to see if it were possible to manually change the colors of HP bars, but they said it wasn't possible (after asking for dxdiag and other stuff... mmkay). I did find a third party tool that supports this option (LSI), but I'd rather not download such an unofficial mod just for one minor feature it has.
The good news is that the champion I main, Ryze, is countered by Tahm Kench anyways, so I don't feel bad using my ban on him.