Rit's liquid denim blue mixed with pearl gray. Gray with a touch of denim on the left and denim with equal gray on the right. Back to soaking for a darker shade. Whatever is left will be poured into a glass quart jar and stored for future. I think I'll try the denim full strength on another piece.
If I am absolutely sure of the count in my mess of mystery linens, I use a permanent marker in a corner rather than having a pin or staple invade the space beneath my nails.