​A person with normal color vision acuity can see a pink-red number 8 against a blue-green background and a blue-green number 5 against a pink-red background

A) Snellen chart
B) Jaeger system
C) Ishihara method

Ishihara Method

A test for color blindness that uses a series of plates with colored dots to form numbers or shapes distinguishable only to those with normal color vision.

Color Vision Acuity

The ability of the eye to distinguish and identify different colors accurately.