Yellow is the only rate I actually measured in-game. Blue and Amara are estimated from it, scaled by their orb bonus. Treat them as ballpark, and run the calibrate test if you want numbers from your own account.
EXP speed
% per 4h · higher better
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Cost efficiency
Taneys / 1% · lower better
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Axis starts at {{ costAxisStart }} Taneys / 1%
Speed vs. value
X Taneys / 1% → · Y EXP / hr ↑
Fast & cheapFast & costlySlow & cheapSlow & costly
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Which orb to buy
Best value
H.Q Blue Orb
Cheapest per point of EXP at {{ bluePer1 }} Taneys per 1%. Grab it when Taneys are tight and you have hours to spare. A full 0 to 100% run costs the least this way.
Balanced
H.Q Yellow Orb
Sits in the middle on both counts, and it is the only rate I have actually confirmed. The safe pick when you would rather not gamble on an estimate.
Fastest
H.Q Amara Orb
{{ amaraExpHr }}% EXP per hour, about 40% quicker than Blue for a 12% premium per point. Buy it when you are short on time, not Taneys.
All calculations are estimates, not exact game values · Cost rounds up to whole orbs · time assumes you stop mid-orb on hitting target