Staying with parents part of bank holiday weekend. Put on a small clothes wash with stain remover as didn’t have time to do at my house and it’s ruined DM’s dungarees which I didn’t realise were in there. Turns out they were her favourite! 
They’re cotton and shade blueberry Bee according to Lucy and Yak. They don’t do the shade anymore and turns out not on eBay/vinted either. It looks like a powder blue to me.
If anyone has these in small/medium and wants to sell them or knows the shade name I’d be grateful. I feel so stupid.