Figure13-10 Using the Hue/Saturation command in Photoshop
Elements to change colors in an image.
Left: The circle contains a number that's a different color to the
background.
This number is hard to separate from its background by people with
color deficient vision (who can’t distinguish between reds and greens).
Right: The colors have been changed using the Hue/Saturation command.
The greens that make up the number have been turned to blue, and their
intensity has been increased.
As a result the number leaps off the screen, even if you're color blind