Changing an Excel cell's backcolor using hex results in Excel displaying completely different color in the spreadsheet

Question

So I am setting an Excel cell\'s Interior Color to a certain value, like below:

worksheet.Cells[1, 1].Interior.Color = 0xF1DCDB;

However, when

Answer 1

Please note that this is not a bug!Red starts from the lower bit and Green is in the middle and Blue takes the highest bits

B G R
00000000 00000000 00000000

The calculation is: (65536 * Blue) + (256 * Green) + (Red)

Thank you.