* Ceart go leor: This is probably the closest and most common translation. It literally means "right enough" and is suitable for most situations.
* Is maith: This means "it's good" or "that's good" and works well as a response to something.
* Go deas: This means "that's nice" or "very well," and is suitable for positive situations.
* Sea: This simply means "yes," and can be used as a short form of agreement, similar to how "okay" might be used.
* Deas: This means "nice" or "fine" and can be used as an informal equivalent of "okay".
So, depending on the nuance you want to convey, you could choose from these options. `Ceart go leor` is your safest bet for most situations.