I don’t know the official name of the color. Last time I guessed from the LeCreuset site and was wrong I got a negative feedback ( even though they loved it and kept it)

So see images selling it based on that

You will be very happy

If you busted your lid here is a replacement

Great deal

The Le Creuset Round Dutch Oven Replacement Lid #28 in a type of unknown name blue is a new and essential addition to your cookware collection. This round lid is specifically designed to fit a Dutch oven, ensuring a secure and tight seal while cooking. Made with high-quality material, this replacement lid is durable and practical, allowing you to continue using your Dutch oven for years to come.