The GOUT has a red bias for sure. It's gross. You have to dial out the red a lot. But that's colour casts, not saturation. In terms of saturation, the GOUT might as well be black and white. The SE has a lot of problems, but between the GOUT and the SE, the SE is by far--by far--more closer in terms of saturation. In fact, in some cases, it is undersaturated--for example, the Wampa cave should be blue, which it is in the GOUT when you dial the colours back in, which it is in the 1980 theatrical bootleg, and which it is in the print of ESB I watched a while back; yet in the SE, it is pretty neutral white.
I made an okay page about the OT colours, but it needs to be updated with better pics and such (which is why it was never public yet), but anyway you can see it here: