Image of rectangle I want to make from paint

if(blueBoxX!=redBoxX or blueBoxY!=redBoxY):
    pygame.draw.rect(scrn, (0, 100, 255), (blueBoxX*75, blueBoxY*75, 75, 75), 3)
    pygame.draw.rect(scrn, (255, 100, 0), (redBoxX*75, redBoxY*75, 75, 75), 3)
else:
    "when they collide I want it to show by showing two colors at one spot"

I was thinking of using just straight line by pygame.draw.line but wanted to know if pygame.draw.rect was possible option