From the Format menu, select Colors.
From the list of colors, select the one you want to change.
Click Modify. The Color dialog opens.
Use the color spectrum box and sliding triangle in the upper right of the dialog to set hue, saturation, and luminosity values.
In Hue, Sat, Lum, Red, Green, and Blue, enter numbers between 0 and 255. The Color/Solid box displays the dithered and solid colors that correspond to your selection.
Click OK to close each of the dialogs and return to your topic.