Provided are articles for use in wound treatment. The article is colored in a chosen color. The chosen color is green, and has in dry state the following mean values: a lightness factor L* along the black-white axis of between 20-55 according to Test Method T-397, a chromatic coordinate a* along the red-green axis of between −45 to −20 according to Test Method T-397, and a chromatic coordinate b* along the yellow-blue axis of between −4.0 to −1.0 according to Test Method T-397. The article can be used as a wound filler in an apparatus for treating a wound with negative pressure.
