Here is the list with the IPA transcriptions:

German Vocabulary
Color (English) Color (German) IPA Pronunciation
Black schwarz /ʃvaʁts/
White weiß /vaɪs/
Gray grau /ɡʁaʊ/
Red rot /ʁoːt/
Blue blau /blaʊ/
Yellow gelb /ɡɛlp/
Green grün /ɡʁyːn/
Orange orange /oˈʁaŋʃ/
Purple purpurrot, violett, lila /ˈpʊʁpʊʁˌʁoːt/, /vioˈlɛt/, /ˈliːla/
Pink rosa, rosarot /ˈʁoːza/, /ˈʁoːzaʁoːt/
Brown braun /bʁaʊn/
Silver silber /ˈzɪlbɐ/
Gold gold /ɡɔlt/
Light hell- /hɛl/
Dark dunkel- /ˈdʊŋkəl/