Safe Web Colours are

Black White Silver Gray Red Maroon Lime Green Blue Navy Yellow Olive Aqua Teal Fuchsia Purple

Some other colours

Orange Lightblue Brown Pink Indigo
                         On the Commodore 64/128, Hyperlink shows only
        the 8
                brightest safe colours while Links shows only the 16
        safe
                colours. I   think   that   no   text  browser
        can 
                exceed
                          16 colours.