Yes!  All of the pigments that we select for our line of colors are considered very lightfast, unless specifically noted.  Currently there is only one color we use that is not rated as extremely lightfast, and that is Vivianite.  Many Vivianite suppliers list it as a very lightfast pigment.  However, after conducting our own testing we have found that upon longterm exposure to intense sunlight it does show some change (shifts from a grey-blue to a cool grey), giving it a rating of 4/5 instead of 5/5.  To protect a painting that incorporates Vivianite, display it under UV protective glass and out of direct sunlight (good advice for any art on display!).