ONLY HALF A CUP OF BLUE, PLEASE

Why does the yellow jug of Arm & Hammer laundry detergent have a deep blue cap? Could it be because the liquid inside the jug is also deep blue? So? Pouring deep blue into deep blue will result in human error of pouring too much blue into the blue cap. I use a clear cap from a different jug to save money. A&H should switch to clear or pink or white or yellow to match the jug, and be on the side of the customer before he catches on and switches to another brand. ♥