I wash on cold (or warm) and stopped separating laundry by colour a while ago and now separate it by purpose. Like a load of my clothes, a load of my daughter’s clothes (that she loads and unloads herself, not raising someone that gets confused when she needs to clean her clothes when she moves out), towels get their own load (with added bleach, colourful ones just fade over time), same with bedsheets (no bleach here though).
If I remember, I’ll do new colourful clothes separately on their first wash with the assumption that most of the dye that is going to come out will come out during the first wash.
I wash on cold (or warm) and stopped separating laundry by colour a while ago and now separate it by purpose. Like a load of my clothes, a load of my daughter’s clothes (that she loads and unloads herself, not raising someone that gets confused when she needs to clean her clothes when she moves out), towels get their own load (with added bleach, colourful ones just fade over time), same with bedsheets (no bleach here though).
If I remember, I’ll do new colourful clothes separately on their first wash with the assumption that most of the dye that is going to come out will come out during the first wash.