Tab indent color is off

[gleich]

So for some reason, the color of | is green. This is a color from my color scheme but I am not sure that is overriding the grey color that is supposed to be shown. I checked the source code and it looks like Conceal and SpecialKey are being set. For my theme file Conceal and SpecialKey are being set as colors that aren't green. This is only happening for the tab character, the space indent character is working fine. Any ideas here? Thank you!