I participated in another of Amy Warden's soap design challenges and this month, we were given two paint swatches with a theme of colors and we were to match those colors with either natural colorants only or synthetic colorants only. The design was up to the artisan.
White: Australian Ivory Clay
Yellow: Annatto seeds infused in a smidgeon of oil
Red: Australian Red Clay
Grayish-Brown: A combination of charcoal and walnut powder
The yellow in the soap turned out a little brighter than I would have liked and the brown in the soap is only a tad off from the swatch which was a challenge to achieve. The white and the red I'm very happy with as they match well.
This was an interesting challenge and I think that the next time I'm in the paint section of the hardware store, I just may pick up some paint swatches.