Rainbow condition

[tymora]

On equal level recipes with 0 craftsmanship, tests suggest about +30% failure rate on rainbow.
Comparatively, yellow has no noticeable increased failure rate, and red is about +15%.

On recipes 20+ levels lower, all orb colors normalizes to the more or less the same break percentage, about at about 20%.

Following the trend, trying to do anything on rainbow on high recipes without a skill that guarantees success, is silly as you are most certainly to fail. On the other hand, you want as many rainbow orbs as possible if the recipe is low.

This is yet another fun (and frustrating) aspect of crafting.

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The relationship is not linear and I don't have enough good data to give a nice graph or a better estimate. Use these numbers as a general guide, not a rule.