What is the RAL colour for Dulux Linseed P15B3?

Dulux Linseed P15B3 is a specific paint color and does not have a direct RAL equivalent. However, for a close match, you may consider RAL 1015 (Light Ivory) or RAL 1001 (Beige), depending on the undertones of the Dulux color. It's always advisable to compare physical samples to ensure the best match.