This is just a quick note on how to create .icc colour profiles in Linux. You need a colour calibrator (piece of hardware) for this to be useful to you.

DESC="Some random machine"
QUALITY=h   # or l for low, m for medium
set -e

dispcal -m -H -q $QUALITY -y l -F -t $COLOR -g 2.2 $NAME
targen -v -d 3 -G -e 4 -s 5 -g 17 -f 64 $NAME
dispread -v -H -N -y l -F -k $ $NAME
colprof -v -D $DESC -q m -a G -Z p -n c $NAME
dispwin -I $NAME.icc