I worked at a bloodbank for 15 years before the "vaxx" and I can tell you that is completely normal, those are whole blood bags, the hemoglobin levels also determine some of the coloring, higher hemoglobin counts produced a darker bag like the one on the right, as for arterial sticks, the SOP is to immediately discontinue the flow, the bag would never be filled, it's also brighter than the one on the left.