On the Layers toolbar, click the Layer Properties Manager
button.
In the Layer Properties Manager, click the color you want to
change.
In the Select Color dialog box, do one of the
following:
On the Index tab, click a color or enter the ACI color number
(1-255) or name in the Color box. Click OK.
On the True Color tab, select the HSL color model in the Color
Model option and specify a color by entering a color value in the
Color box or by specifying values in the Hue, Saturation, and
Luminance boxes. Click OK.
On the Color Books tab, select a color book from the Color Book
box; select a color by navigating the color book (using the up and
down arrows) and clicking on a color chip. Click OK.
Toolbar: Layers 
