I set g:auto_color=1. And I found When I work with terminal, the hex number form color not highlight.
It still does not work. And if I call :ColorHightlight, error happens.
Error detected while processing function Colorizer#DoColor:
E830: Undo number 0 not found
Nice! It works.
:ColorHightlight also works right.
BTW, my terminal os is debian.
This time, I test it on debian terminal, mac terminal, and mac gui. It seems all right on these platform.
Thank you very much :)