itex: greek | log-like | operators | arrows | delimiters | large operators | integrals | dots | spacing | accents | symbols | fractions | superscripts | subscripts | roots | sizes | styles | matrices | alignment
Named HTML colors are supported: aqua, black, blue, fuchsia, gray, green, lime, maroon, navy, olive, purple, red, silver, teal, white, and yellow as well as RGB hexadecimal colors of the form #rgb or #rrggbb.
$a { b \color{red} c \color{#0F0} d } e$
$a {b \bgcolor{red} c \bgcolor{#0F0} d } e$
${\bgcolor{red} a b} c {\bgcolor{#0F0}d e}$