
Dark rum is a colour-based category of rum, defined by its deep brown, black or reddish colour rather than by any single legal production standard.
Pronounced molasses and caramel character over a medium to full body; deep and rich rather than clean or light.
Carries a drink as a full-bodied base measure or, in smaller amounts, adds molasses depth and dark colour as an accent; built, stirred or shaken depending on the drink. Because the category is unregulated, two products labelled dark rum can differ widely in body, sweetness and molasses intensity, so they are not interchangeable by colour alone.
Another molasses-forward, full-bodied rum is the only honest swap, since the molasses/caramel aroma and heavy body cannot be reproduced by a clean or light spirit; where dark rum is only a small colouring measure, a lighter rum with a little caramel colouring reproduces the appearance.
Gold / amber rum
Gold rums are gold-coloured and generally take colour and body from barrel aging; dark rums are darker, from deep brown to black, and frequently owe that colour to added caramel or molasses rather than to age. Colour reliably indicates neither category's true age.
Blackstrap rum
Blackstrap is often used as a near-synonym for dark or black rum; where the terms are distinguished, blackstrap emphasises a very dark, intensely molasses-forward blackstrap-molasses character.
Dark rum is a cane spirit — distilled from fermented sugar cane juice, cane syrup, molasses or other cane by-products — whose colour comes from added caramel and molasses, aging in heavily charred barrels, or both. The term is largely unregulated, and colour indicates neither how long a rum has aged nor whether it has aged at all, since an unaged rum can be dyed dark and an aged one filtered clear. Products sold under the name range widely, and many are inexpensive rums heavily dyed with caramel colouring.
Rum is a sugar-cane spirit; the dark style is a retail colour convention rather than a distinct legal or regional tradition.

Dark 'N' Stormy
Dark rum, Ginger beer

Dark 'N' Stormy – IBA
Dark rum, Ginger beer

Dark 'N' Stormy Highball
Dark rum, Ginger beer

Dark 'N' Stormy Shot
Dark rum, Ginger beer

Jungle Bird
Dark rum

Jungle Bird – IBA
White rum

Hurricane (recipe No. 2)
Dark rum, White rum

Bermuda Rum Swizzle
Light gold rum, Dark rum

Black Rum Swizzle
Dark rum

Lost Plane
Dark rum, Aperitivo, Amaro

Three Dots and a Dash – IBA
Agricole

Tiki – IBA
White rum, Dark rum