The 1st generation of 8 bit thomson computers have a custom palette of 16 colours.
[[File:Screen color test Thomson MO5.png]][[File:MO5 TO7 palette.png]]
Quite comparable with the ZX Spectrum palette, it is indeed done with a range of medium and clear tones instead of dark and medium.
The Attribute system was comparable to MSX1 with attributes of 8x1 and 16 colours diplayable on screen (2 per attributes) superior to ZX Spectrum in almost every way.
==MO6 and TO8==
The 2nd generation of 8 bit thomson computers got the addition of the 3 video modes of the Amstrad CPC/PLUS, in addition to the heritage attribute based mode.
But the palette have been upgraded into a 4096 12bit palette, the same as on the unreleased at the time Amstrad PLUS range (and of course the Commodore Amiga)
Minus the lack of Hardware sprites and raster interrupt facilities (still doable on Thomson machines), the MO6 and TO8 are actually superior to the Amstard PLUS Range due to the attribute based mode.
*[http://www.fr.wikipedia.org/wiki/Thomson_MO5 MO5 on Wikipedia (french)]