Which colour combination have the Royal Mail's automated address readers not been able to read?
A) Green on white
B) Black on red
C) Blue on yellow
D) Black on white

Question

Quizplus · Accepted Answer

Black text on a red background has historically been difficult for Royal Mail's automated address readers to read due to the lack of contrast and the way the machinery processes colors.

Which Colour Combination Have the Royal Mail's Automated Address Readers