This is very difficult to read for most people with low vision. It is very important to display text and numbers in a way that provides maximum contrast between the characters and the background. Pale colours and colours which are close in tone should be avoided. White or yellow type on black or a dark colour is more legible provided that the typeface weight and size are suitable. Small type and very bold type tend to blur for some people, reducing legibility.
Telephone features that make a difference .