"Toffee color" refers to a shade or hue that resembles the color of toffee, a type of caramel candy. It is a warm, brownish tone with a hint of gold or yellow. Full definition
Cook without stirring until the caramel is dark toffee color, then remove from heat and carefully stir in butter and heavy cream. (lapechefraiche.com)
A great toffee colored leather top by Kenzo. (1stdibs.com)
I remember how dreary it looked the first time I saw it — it had camel colored carpeting and toffee colored walls, with a picture of a horse above the bed. (steffysprosandcons.com)