What color are these Muscovy ducklings?

[Miss Lydia]

Thank you!!
Oh, I didn’t realize Penelope got in on the photo shoot She is a porcelain D’uccle!

She's a cuttie!

 

[Canadian Wind]

If you don't mind, what are you referring to as 'not true blue' and 'true blue'? This has got me confused.

The one you are calling a lavender is probably a silver, unless your birds each carry a copy of this recessive gene. I don't think you have any chocolate there, but if one turns out to be it will be female and your male carries the recessive.

5, 9, and 10 look to be blacks, 1, 2, 3, 4, and 8 look like silver barred, 7 and 12 seem blue, and 6 and 11 look like regular silver. Love the pied markings on those blacks!

As Miss Lydia says, their colours and markings can and probably will change through their moults. I see your black female is a White Head, so any of her offspring can lose colouring from their heads and necks over the next few moults.