There are only a handful of songs that have given me that experience but one that stands out most is
Mentim by U-Ziq (technically that U is supposed to be the Mu symbol) the track isn't on youtube so here's a grooveshark link instead -
Grooveshark - Free Music Streaming, Online Music.
It's on the Royal Astronomy album, it stands out as being one of the more ambient tracks on the disc, lacking any sort of big beat. Same as the album stands out from most of his catalog as being the most melodic and least glitchy.
Anytime I hear it I can't help but imagine a coastline being bombed during the greyness before dawn or just after dusk. No specific colours but the impression is definitely there, it's not a happy piece of music.