Many photographer web sites tend to be black, white or grey. For those who want to add some colour to their site’s design, the usual go-to sites for colour inspiration are Colour Lovers and Color Combinations.
A site that makes colour swatches almost fun is Color.Hailpixel.
To help you understand colour harmony for web sites, photo shoots and portrait photography, there are two similar sites: Color Calculator and Adobe’s Color Wheel.
Colour Vision