Always found this useful https://color.adobe.com/create/color-wheel/ https://color.adobe.com/create/color-wheel/ And whatever you do, don't spend too much time

Always found this useful https://color.adobe.com/create/color-wheel/ https://color.adobe.com/create/color-wheel/ And whatever you do, don't spend too much time on this stuff. As long as your colours aren't too garish, then you should spend way more time on whitespace and typeface.