spot on

US /ˌspɑːt ˈɑːn/
UK /ˌspɑːt ˈɑːn/
"spot on" picture
1.

exactly right; accurate

:
Your analysis of the situation was spot on.
Her imitation of the accent was spot on.
1.

exactly; accurately

:
You've hit the nail spot on with that observation.
The forecast was spot on; it rained exactly as predicted.