What’s the difference between Hansa Yellow Deep (PY65) and Isoindolinone Yellow Deep (PY110)?

These two deep yellows are very similar in hue, so what’s the difference? I find Hansa Yellow Deep (this Daniel Smith one, at least) to be slightly more yellow, where as the Holbein Isoindolinone Yellow Deep that I tested is slightly more orangey. If I’m squinting, HYD looks more dull in masstone but brighter in … Read more