Why would blood be orange in color?

Blood can appear orange in color due to a condition known as hypercarotenemia, where high levels of carotene in the blood can give it an orange hue. Carotene is a pigment found in orange and yellow fruits and vegetables. Excessive intake of these foods or supplements containing carotene can lead to this discoloration of the blood. This condition is harmless and usually resolves once the intake of carotene is reduced.