formatting wth 3 conditions

Want to color a cell (D1) red if it meets 3 conditions...otherwise leave white:
1. Cell B5 is blank
2. Due date has passed (due date in cell C5/todays date in cell A1)
3. Cell D1 contains the following...XXX

How do I do this?

Thanks

Thanks very much. Works, but have another question.
In addition to the above formula, which highlights the cell red if those conditions are met, I want to highlight the cell green instead, if these conditions are met:
1. If B5 contains the word Completed (vs. blank in the above)
2. If D1 contains XXX

I figured I could write a similar formula, in this case =AND(B5="Completed",ISNUMBER(search("XXX",D1))), but doesn't seem to be working...??

my formula has the end quote after completed...didn't include above

That one didn't work. Prob didn't explain well. I'm tracking tasks to be completed. Left hand side of worksheet contains the date task is to be completed. Right had side is a calendar of sorts, with each column representing one week of time. When task is done, the word Completed is entered in the left side. IF not yet completed, it is left blank. I ultimately want to do 3 things:
1. When I enter a date in the left side, the corresponding cell on the right side (with that date) gets populated with "XXX". I have that done.
2. If the due date has passed and the task hasn't been completed, the cell (with the XXX) is highlighted red. You helped me with that above and is now working
3. That same cell noted in point 2 should highlight green if the task has been Completed and there is an XXX in the cell (I want to avoid the whole row highlighting green-or red in the point above-if task has been completed. Only the cell with the XXX.
This third point is where I'm now having difficulty.
Hopefully this is a better explanation.

my permissions shows that i can't post attachments