Colour contrast ratio test and amendment
This text sample attempts to visually demonstrate how readable this colour combination is, for normal or bold text.
Chunky 14pt bold text. Large 18pt text.
Why colour contrast is important
The crux of it is readability.
- High contrast allows everyone to read text at greater speed.
- As contrast sensitivity declines with age, older people require more.
- Old washed-out monitors have very poor contrast.
- High contrast helps combat screen glare on mobiles.
Further information: Contrast Rebellion.
So another colour contrast test tool?
On the day-to-day I required a simple tool which would give me the nearest AA match to a colour pair. It appeared the other tools only resulted in a pass or fail.
This tool allows me to quickly bounce back to the designers a colour which passes, allowing them to make an informed decision over appropriateness.
A third of your visitors need glasses
In fact some two thirds of your audience need help viewing websites. Amazingly half of them don't wear their glasses or contacts when browsing online.
Please bear this in mind when choosing colour combinations. Remember, poor colour contrast and font size choices may make text too difficult to read.