1. 

   RAL - RAL 7021 / Black Grey

   hsl(204, 5%, 19%) / cyan: 0.09, magenta: 0.04, yellow: 0.00, key: 0.80 / LRV ≈ 3.1%

2. 

   Sikkens - S5.03.16 (RAL 7021)

   hsl(200, 6%, 20%) / cyan: 0.11, magenta: 0.04, yellow: 0.00, key: 0.78 / LRV ≈ 3.5%