This combination is not acccessible #25A78D
When the background is blue (#024671) or dark grey (#3f3e3f), the headings and text need to be lighter than they are now. these colors don’t have enough contrast with the background(s).
neither is this one #F58131
the buttons have the opposite problem. the background needs to be darker if you want to keep the button text white. hover to see what it looks like with black text (which is accessible)
This combination is accessible #2cc4a7
there’s enough contrast now with headings and blue/grey backgrounds. this difference is more subtle than the buttons below.
this combo works #ff9347
Hover over the buttons below to see the original color