I’m going to say blue. It’s on the majority of his shirts
Thank you
I would say Purple and Red . Considering his Flash t-shirt which is his favourite with purple Sleeves or shirt .
He seems to go with red more... But I can't be sure.
In Young Sheldon, Sheldon says his favourite colour is khaki
On Young Sheldon he tells John it's blue, but he also tells Missy it's khaki.
His favourite colour is khaki he says it in season 2 episode 10
What do you think?