Hey there,
I suppose it depends on how you’d like to colour it
(Which elements, Which View)
But, it should be possible!
There is a post from Jim Mackin, in 2016, that details how to do a little bit of colouring on the Listview of a Module, based on a field’s value: http://www.jsmackin.co.uk/suitecrm/suitecrm-list-view-conditional-formatting/
The above link is for Accounts, but it should be fairly portable to other Modules
It should also be possible on Detailview/Editview, but you’d need another approach
Some notes on this have previously been posted here, by samus-aran: [Resolved] Run javascript code on load detail view
Let us know how you get on, or if you need assistance!