I don’t have a problem with the yellow, but I find the red extremely hard to read, especially on the brownish background of the sidebar. Although it seems too bright, for somebody with colour-blindness, that red text could vanish altogether, because there is insufficient contrast. I find this tool invaluable for checking colour combinations. It not only lets you test for “normal” vision, but shows you how the text would appear with various forms of colour-blindness. It can be most enlightening.
Sorry to say, but I find the red on grey and grey on black text horrible. If the site did not offer vital info that I couldn’t get anywhere else, I’d be gone in a second.
Symbology is a great tool, but it should be used in a sublte way.
The yellow is ok I guess, but the red is kind of annoying. I general it’s a good idea to work with the color wheel (use colors that sit opposite against each other on the wheel). Good luck with your first website!
Yes, the red on gray is pretty harsh. I doubt that people will really appreciate the spirit behind the color choices anyway, so I’d rethink this. Perhaps have the colors somewhere—as borders, a background image or whatever—but not mix those colors with the actual text. So maybe have a white page with decorations at the top, sides or elsewhere, but not behind the actual text.