Faded mulch doesn't necessarily mean the bed needs another full layer. Check beneath the surface in several spots before ordering. There may be plenty of material left, just unevenly spread.
Inspect the Bed Rather Than the Surface Colour
Pull back a small area by hand to see the existing layer, taking care around plants. Compare the front edge with the middle and the areas beneath shrubs. Material is often distributed unevenly, so a measurement from one bare corner can lead to ordering too much for the entire bed.
Photograph spots where mulch has drifted onto the lawn or gathered around trunks. The aim is an even, appropriate finish, not the thickest possible layer. Existing material may need redistribution or removal before anything new is added.
Separate Preparation From Installation
Ask whether light weeding, edge tidying, moving old material, and removal are included. Heavy weed growth or neglected beds may require a larger preparation job than a simple refresh.
Choose material after the bed is assessed. Matching the old colour is only one consideration; consistency, supply, and the condition of what is already there also matter.