“Would that be OK with you?”
You and one of your coworkers want to switch your assignments. You need to check with your boss for permission. You're not sure whether she'll allow it, so you write an email describing the plan and ask this at the end.
Would that be OK with you?
This is a good, friendly way to ask for permission to do something. You can use this phrase when asking for permission from a boss, a teacher, a parent, or anyone who has authority over you.
I was hoping to take this Friday off. Would that be OK?
Use this phrase when you want to be polite, but you're also confident that the person you're asking will probably give you permission.
You also use the phrase "Would it be OK if I (do something)?"
Would it be OK if I use your computer for a minute, just to check my e-mail?
If you think that something is OK, then it is "OK with you". Here's how to use the phrase "OK with ___":
A: Mom, can I stay over at Denise's house on Saturday?
B: That's OK with me, but ask your father.