How to sort laundry by color without making too many loads

Colour sorting is most useful when it protects a light item from a higher-risk new or dark item. It is less useful as a rule that overrides a clear temperature or gentle-cycle limit.

The checker is a planning aid, not a replacement for the label on the individual item. When a label is more restrictive than a general pattern, use the label and separate the item if needed.

Multicolour prints, unknown colourfastness, and a newly purchased garment all increase uncertainty. Treat these as reasons to review the combination rather than as evidence of a guaranteed problem.

Unknown information is a reason to slow down rather than a reason to invent certainty. Confirm the fabric, colourfastness, or care limit when the item is valuable or the consequence of a mistake is high.

Build one candidate load, then compare the checker’s precautions with the labels. Split only where the result identifies an important compromise or where you want to be more cautious.

Use a smaller first load when you are unsure, then save a known-good routine locally after you have checked the actual labels. That keeps future planning quick without making a blanket claim about every item.