This is an important addition to the description in Kings, where the veil is not mentioned. It was made of exactly the same colors as the veil of the tabernacle Exodus 26:31.
Related Commentaries of 2 Chronicles 3:14
2 Chronicles 3:14
14 And he made the vail of blue, and purple, and crimson, and fine linen, and wroughtf cherubims thereon.