The Colors in Use status bar on the Materials tab displays all colors in use in the current colorway.
You can use the Colors in Use status bar to do the following:
To view the materials using a color, on the Colors in Use status bar, hover over the color. Materials using that color are highlighted with a red and yellow tick icon:
To change a colorway color, use one of the following methods:
Drag the new color from Color Libraries to the old color on the Colors in Use status bar.
On the Colors in Use status bar, click the color you want to replace. A color dialog box is displayed.
Select the new color.
The old color is replaced by the new color throughout all materials using the old color.