Dying black robes into blue wizard robes
Profit per instance
138,750 per instance, after tax
Activity time
11 minutes
Minimum recurrence time
24 hours (or 4 hours at less gp/h)
Effective profit
756,818 per hour, after tax
Skill requirementsQuest requirements
None None
Item requirementsOther requirements
Coins, Black robes, Blue dye. None
Experience gainedLocation
NoneAnywhere
Inputs (502,500)Outputs (641,250, after tax)
750 × Black robe (284,250)750 × Blue dye (218,250)750 × Blue wizard robe (641,250)

The price of one black robe is 379 and the price of a blue dye is 291. Dying the robe blue currently makes a profit of 202.

Generously assuming 1 tick per dye; taking 1 tick to open the bank and 2 ticks to withdraw 14 of each item, then 1 tick to close the bank, you can dye around 4,667 per hour. However, with some decently timed clicks, 5,385 can be dyed per hour.

The buy limit of black robes (which is the limiting factor) is 125 every 4 hours. As a result, you will need to make an order and allow for it to fill (e.g. over night) in order to be able to do this for long periods of time. Due to this, the theoretical amount of robes you can dye is severely limited; 1 hour of efficient robe dying would take around 176 hours of waiting in order to fill the order.


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