Red Wine Singapore. Red wine is wine made by grape varieties where grapes have dark colour skin. Red wine colours can range from, intense violet for younger wines, matured wine normally brick red and brown colour with older aged wines. Most of the red wine production come from the process of extracting colour and flavour from the grape skin. Juice from the dark colour skin grapes is actually greenish white, with the present of anthocyan pigments from the skin of the grape thats where it becomes red in colour. Wine also categories as red wine, white wine, champagne and many more.