Guerlain Rose Barbare #1 is a slightly cool-toned, very light pink with a pearl finish. It is a discontinued eyeshadow.
Rose Barbare #1 is a very pale pink with a cooler shimmer and a warmer base (it looks cool-toned swatched on me but warmer in the pan) paired with a satin finish. It had semi-opaque pigmentation, but it was thin and dusty, so it was prone to sheering out and had faded and creased after five hours of wear.
These shades feature matte, satin, and metallic finishes and are enriched with light pigments, reflecting light to make the eyes seem more open and brighter.