To be clear about that, we are talking about the Southwest of the USA when we look at this week's Jewelry Artisans Community Oldies but Goodies Challenge.
I am from Southwestern Germany, but I don't think we really have our own color palette ;-) The USA's Southwest has a rich and bold color palette of blues, terracotta tones, orange and yellow which stand for the sky and the desert, but of course you mustn't forget about turquoise and coral and more if you think about jewelry.
The latter were the colors for the challenge, and this is what JAC members had to show. Take a look at the whole thread which is linked above, once again there is so much more to see!
1 MC Stoneworks
2 Jewelry Art by Dawn
3 Violetmoon's Corner
5 Cat's Wire