xstdcmap(1) on Linux
The text c2a2995a0c4a, as Debian 6.0 (Squeeze), Debian 5.0 (Lenny), Debian 4.0 (Etch) shipped it.
X standard colormap utility
Flags it lists
-
-all -
-best -
-blue -
-default -
-delete -
-display -
-gray -
-green -
-help -
-red -
-verbose