Cell fill (Background) Colors

Hello!

Can someone tell me why, when I copy a worksheet from one workbook to another, the colors on the sheet in the destination workbook, become dull/faded. They actually change from the original colors to some off colors.

I copy by selecting the source sheet, hold down ctrl key, then drag from one workbook to another).

Also, is there a way to get the sheet back to the original colors.

Thanks.

you could try resetting the colour palatte in both workbooks
tools options colours reset