One of the site returned from the sites method has the following styling codes
"site_type": "main_site",
"name": "GIS",
"logo_url": "http://sstatic.net/gis/img/logo-small.png",
"api_site_parameter": "gis",
"site_url": "http://gis.stackexchange.com",
"audience": "cartographers, geographers and GIS professionals",
"icon_url": "http://sstatic.net/gis/img/apple-touch-icon.png",
"site_state": "normal",
"styling": {
"link_color": "#0077CC",
"tag_foreground_color": "#e0e0e0",
"tag_background_color": "#f5f5f5"
}
The foreground color and background color are actually shades of grey which makes the text not readable.
Also would it be possible for the color codes to always return the 6 digit code rather than #fff for some and #ffffff for others.