This is not coloured, but also really nicely ordered by size and visualized:
ncdu - NCurses Disk Usage
apt-get install ncdu
SYNOPSIS
ncdu [options] dirDESCRIPTION
ncdu (NCurses Disk Usage) is a curses-based version of the well-known 'du', and provides a fast way to see what directories are using your disk space.
Output looks like this:
ncdu 1.10 ~ Use the arrow keys to navigate, press ? for help
--- /var/www/freifunk -------------------------------------------------------------
470,7MiB [##########] /firmware
240,8MiB [##### ] /ffki-firmware
157,9MiB [### ] /gluon-alfred-vis
102,6MiB [## ] chaosradio_162.mp3
100,2MiB [## ] /ffki-startseite
99,6MiB [## ] /ffki-startseite-origin
72,3MiB [# ] /startseite
66,2MiB [# ] /metameute-startseite
35,2MiB [ ] /startseite_site
11,9MiB [ ] /jungebuehne
ncdu is nice, cause you can install it via apt on debian. Only colors would be cool and an export function that does not use the whole screen.
gt5 - a diff-capable 'du-browser'
gt5 looks quite the same, and there are some colors, but they have no meaning (only all files and folders are green). gt5 is also available via apt:
sudo apt-get install gt5