Well back in the day you would once in a while get something put out on solid translucent color vinyl. It was a gimmick to get you to spend money or they just thought it would be cool for a limited run. I would say the majority back then didn't sound that great opposed to the black carbon copy. A lot of times these color copies where imports that didn't do good pressing work in the first place. So most old timers don't like color copies because it's a risk on how it will sound. Back then they also didn't do a lot of marble pressings, one does come to mined on a first pressing is Dave Mason: Alone Together in 1970.
Today is another story and if your buying new records you can't avoid it if you wanted to. I probably have at least 600+ titles that are color/marble. A lot of times these days they do a limited run of the fist pressing on color disc prior to the standard run, so if you like first pressings you got no choice.
They are doing far far to many mixed colors, splatter & marble and IMHO these will not be the best sounding process for a record. These records contain different mixes of vinyl and most of them are made from recycled scrap from making the solid color disc. They save the outer lip trimmings and regrind it to use again. The worst records are the ones they hand make the pucks, forming pie shapes with a distinct line from color to color. Really? this is bad
Me I like the best masterings and pressings using the best vinyl on a record, that tends to be made of performance vinyl. That would not be all these colors they keep pushing on us that IMO is a gimmick for the youth. I like a black color record as you can see it's clean or dusty for starters. But I also like limited runs and first pressings so it's a catch 22. So some times I buy the limited first pressing on colors and then get the standard issue on black vinyl to play.
Some colors I have been very surprised at some times at being quiet and sounding good.
Solid White
Clear
Blood Red
Now others can sound good but these tend to be pretty consistent. And as with any record they can all sound good if the production quality is there. The problem is, many color records are not geared to the audiophile looking for the best quality pressing, as it's still a gimmick that is selling color vinyl over the quality of the work.