For a page about color, most of the images are sure washed out. Their white is visibly gray. I don't figure out why though. When you open up the images in a new

For a page about color, most of the images are sure washed out. Their white is visibly gray. I don't figure out why though. When you open up the images in a new tab they look fine, and I don't see opacity or a color transform in the CSS. It looks pretty bad though.