backround color

[#1]

Hi, I realized that with so may charts needing consistant colors, I need to do colors the right way.  I included the RGB values into my data import.  I created the Variable within the settings/Document properties/Variables tab.  if(not Is Null(R), RGB(R,G,B)).  In the Expressions tab \ Background Color in put in the =$(vColor) in.  Now everything turns black.  Not sure what went wrong.  Jim

[#2]

Set each value then enclose it in the color something like

R=10

Y=152

B=210

=RGB(R,Y,B)

[#3]

sorry, i'm a beginner w/colors.. didn't get what you mean?