The safe areas aren't as much of an issue here as the very first post said this concept was an online thing, not for broadcast on a TV.
That being said yellow and white do not a good combination make, as it's unreadable.
Can I introduce you to the colour wheel aka this:
Which I have taken from here
to give it its credit.
As a general rule, use one colour from the bottom for the background and one colour from the top of the wheel for the text, or vice versa (if you must). Ideally use colours opposite each other on the wheel but generally if they're either side of opposite you'll usually get away with it.
Last edited by Neil Jones on 14 June 2017 8:14pm
cyberdude, ChrisPBacon and DavidWhitfield gave kudos