A full list of color names(aliases) that can be used in HTML/CSS/SVG. You can simply replace numeric rgb/hex/hsl value with a readable string. All values supports by all modern browsers, and can be used as an attribute in css file, html or svg attribute.
According to w3 specification all color names(keywords) are case-insensitive.
Actual list and information you can check on w3 site w3.org
Colors sorted by lightness parameter.