The official colours of the ASTRO fanclub are Vivid Plum and Space Violet.
The ASTRO fanclub, also known as Aroha, was established in 2016. It is the official fanclub of the South Korean boy band ASTRO, and its members are referred to as Arohas. The fanclub has its own official logo, which is a combination of the two colours, Vivid Plum and Space Violet. The fanclub also has its own official merchandise, which includes t-shirts, hats, and other items.