Help needed in dax expression - for Conditional Formating for background color.

Thanks for the help..

PTD - Revenue Accrual Color =  
SWITCH(
        TRUE(),
        AND(
            LEN([PTD - Revenue Accrual(Ex-GST)]) > 0, 
            [PTD - Revenue Accrual(Ex-GST)] <> BLANK()
        ),      IF(
            [PTD - Revenue Accrual(Ex-GST)] > ([MTD Total - Revenue(Ex-GST)] * 0.3), 
           "#FFC7CE"  // This is a hex color code for a shade of red
        ),
        BLANK()
    )

instead of "-" I used Blank()