How do you make a color palette in Photoshop CS5?

Answer 1

Convert document to Indexed Color mode. Then go to Image > Mode > Color Table. You can convert only RGB and Grayscale images in Indexed Color mode. When converting from Grayscale conversion is automatic, when converting from RGB dialog box appear where You can choose Custom and create custom color palette. To change a single color, click the color and choose a new color in the Color Picker. To assign transparency to a color, select the Eyedropper tool in the Color Table dialog box, and click the color in the table or in the image. The sampled color is replaced with transparency in the image. You can also save color palette on disc for later use or load existing from Color Table dialog (Save and Load buttons).