Noncolor rhymes with:
color, culler, discolor, mccullar, mcculler, metrocolor, multicolor, color, culler, discolor, duller, mccullar, mcculler, metrocolor, muller, multicolor, stuller, tullar, tuller
Noncolor sounds like:
naclerio, nagler, neisler, nesler, nessler, nicollier, nonnuclear, nuclear