Especially while editing photos, the low contrast combined with the low processing power, made me realize, this laptop is no good for my use cases anymore. Nowadays I use a Mac with a Retina display and the contrast is awesome. When editing photos or designing something, I still make sure to check it on a low contrast device, as I am aware that not everybody has a high contrast display.

I surfed the web the way I think a lot of people do, on a monitor that they took out the box and started using without doing any calibration. I was astounded by the lack of contrast all over the place. We like gray a lot and often we like it to be very subtle.

-- Susan Robertson in A List Apart

So, use something like Contrast Ratio by Lea Verou to check the chosen colors and contrast. The best verification is to get a low spec, low contrast monitor that actual people are most probably using. It’ll help a lot.