My son is color blind, and has a green deficiency. Depending on the green, it may appear as brown or dark red. My dad had the same problem.
My ex husband had a different type of color blindness. His was reds and blues. He saw most pinks as grey. Purple would be varying shades of blue. There was busy road near us that had traffic lights and those yellow sodium vapor streetlights. He saw the red lights the same as those sodium vapor lights, so he had to be very careful driving the road.
Suzanne