I am trying to set an orangish color in the following manner:
WorkSheet.Range(\"A1:A5\").Interior.color = 49407
and
WorkShe
A Colorcode is usually composed of three values, RED, GREEN, BLUE. Your Hexcode is missing one of the three and excel is autofilling it with FF. So your color C0FF is transformed to be FFC0FF.
Here is an Exampleprogram so you can see it in action, make a new sheet and execute it.
' C0FF will be changed to be FFC0FF
Range("A1").Interior.Color = &HC0FF
Range("A1").Select
ActiveCell.FormulaR1C1 = Range("A1").Interior.Color
Range("A2").Select
ActiveCell.FormulaR1C1 = "=DEC2HEX(R[-1]C,6)"
' 49407 is actually 00C0FF
Range("B1").Interior.Color = 49407
Range("B1").Select
ActiveCell.FormulaR1C1 = Range("B1").Interior.Color
Range("B2").Select
ActiveCell.FormulaR1C1 = "=DEC2HEX(R[-1]C,6)"
' Use RGB to have better control over your results
' Switch the order when doing so: 00C0FF => 00 Blue C0 Green FF Red
Range("C1").Interior.Color = RGB(&HFF, &HC0, &H0)
Range("C1").Select
ActiveCell.FormulaR1C1 = Range("C1").Interior.Color
Range("C2").Select
ActiveCell.FormulaR1C1 = "=DEC2HEX(R[-1]C,6)"
EDIT: Added a third example to illustrate switching the colors as suggested in a different answer.