You guys have to be memeing. I can sort of see the 4, although it's pretty subtle. But there's no way that's a 7. It clearly curves at the top, like a 2.

Edit: Ok, nevermind. I just loaded up the image in an image editor and shifted the hue a bit. I can see the 74 then. I knew from previous color vision tests that I had somewhat less than average color vision, but I didn't think it would be this striking.

Edit 2: Oh, and here's the edited image, for others who might have trouble seeing it (I hope you won't have trouble with this image, too):