On the Properties toolbar, click the Color control.
Click Select Color to display the Select Color dialog box.
In the Select Color dialog box, True Color tab, do one of the
following:
Select the HSL color model in the Color Model box. Specify a
color by entering a color value in the Color box or by specifying
values in the Hue, Saturation, and Luminance boxes.
Select the RGB color model in the Color Model box. Specify a
color by entering a color value in the Color box or by specifying
values in the Red, Green, and Blue boxes.