Red. The highlights always look wrong to me. I follow the standard advice, but the results never look right to me. .....So, I mess with it. Need I say more?
The hardest, for me...let's see...just about any color
Alright, sheez...the hardest base oil color, in my view, in order:
- orange
- yellow
- white
- green
Hardest to highight:
- yellow
- white
- polish crimson
- black
Hardest to shade:
- white