For Tyson, it is more important for things to be complementary than matching.
His OCD can be a little temperamental about what it will or will not kick up a fuss about, but in general terms, Tyson is more likely to be bothered by something contrasting poorly than something not matching exactly. As with many things, this comes down to how it appears with his Synesthesia.
It’s a point that is repeated many times when it comes to Tyson, but it is a core tenant of who he is as a person and shapes his entire thought process. It’s worth emphasising.
When it comes to matching things together in a complimentary way, Tyson would largely priories thing by colour and pattern; unsurprisingly. After that, when Tyson is sorting something - especially manually - he would go by texture as his next choice.
For Tyson, the least important factor would be shape and size. Those are, however, factors that Tyson would priorities when ordering (rather than sorting) physical objects. Usually, he would go with ascending order of size, from left to right.