Phrasebook.com

black
schwarz (shvahrts)
white
weiß (vighss)
gray
grau (grou) – rhymes with “cow”
red
rot (roht)
blue
blau (blou) – rhymes with “cow”
yellow
gelb (gelp)
green
grün (gruun)
orange
orange (oh-RAHNGSH)
purple
purpurrot (”PURR-purr-rhot”), violett (”veeo-lett”) or lila [...]