Wash darks separately. To help preserve dark items' original colors and prevent bleeding onto lighter clothes, wash darks together using the cold-water cycle (60 to 80 degrees). Use the shortest cycle. Select the appropriate setting depending on how soiled the clothes are and what fabric they're made of.

What happens if you wash darks in cold?

Washing dark colors

(This is why it's important to separate your clothes into light and dark laundry loads. While white items do best in hot water, cold water prevents fading in your dark items.)

Should I wash colors on cold?

While it may seem OK to mix the different types of fabrics and different colored clothes to wash your laundry, doing so is actually not a good idea. Dark and light colored clothes should be washed separately in cold water. Washing clothes in cold water will mostly prevent color bleeding between clothes.