DIY advice
FYI: When sending your husband to buy paint at Lowe's make sure you use color numbers if you're trying to save $10 and doing a Sherwin Williams match-up with Olympic paint.
Tidewater is not the same as Tidewater Blue
tidewater
tidewater blue
Lesson learned
Perhaps they'd like a certain blogger to help them expand their repertoire of color names so this kind of confusion doesn't happen again.