Blue dye

Blue Dye is a free-to-play item on the OSRS Grand Exchange in the other category.

In-game examine text: "A little bottle of blue dye."

It has a Grand Exchange buy limit of 150 every four hours, a high alchemy value of 3 gp, and item ID 1767.

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Blue Dye currently has a flip margin of −5 gp, which isn't profitable to flip right now despite 4,524 trades over the last 24 hours.

Items with negative or zero margins like this are better watched than actively flipped until the spread widens.