In order of birth the collars have been given as follows:-
First pup – Black Girl – PURPLE
Second pup – Black Girl – PINK
Third pup – Yellow Girl – ORANGE
Fourth pup – Yellow Boy – BLUE
Fifth pup – Black Boy – WHITE
Sixth pup – Black Boy – GREEN (was grey)
Seventh pup – Black Girl – RED
Sometimes the purple collar looks a little bit blue in photos. The grey collared pup may change to another colour as very similar in photos to the white. (so not all that helpful!) I will update with new colour choice when I have made the change!