Outlook settings messing up color codes

I'm using brand colors in my email template which include green, blue, and yellow. In my testing a couple users have settigns on their Outlook to display email in a black screen view. This setting seems to change the colors in my emails, the yellow turns into a particuarly ugly brown shade (IFKYK). Does anyone know if there is a way to override the way Outlook renders colors in order to keep the brand colors intact? 2 of 5 of my testers had this setting on, I don't know how common it is for my users.