I thought of this while trying to mentally translate "How bad is the sauce?" but this applies to anything. Basically just trying to inquire about the extent of a quality.
I ordered the car green, but it came blue.
How blue?
The weather is lovely.
How lovely?
How bad is the sauce?
How far did he run? (This was previously explained to me as À quelle distance... but that doesn't apply to the others and I just wanted to bring it up again. "À quelle distance est-ce qu'il a couru?" Is that right?