Geranium lake, also known as rose madder, is a red pigment that is commonly used in the manufacturing of paints, textiles, and cosmetics. However, there are several synonyms for this color, including magenta, fuchsia, crimson, and vermilion. These colors share a similar hue to geranium lake but may have different undertones or intensities. Magenta, for example, is a brighter and more saturated version of geranium lake, while fuchsia has a purplish undertone. Crimson is a darker and more muted shade of red, while vermilion has a slightly orange tint. Knowing the synonyms for geranium lake can help artists and designers choose the perfect shade for their creations.