I'd also like to point out that RAL 1013 is the closest match mathematically, with RAL 9002 a very close second.
According to the current standard (CIE DE2000):
GMK L9 (216,210,194) -> RAL 1013 (228,217,199) = dE 2.9505
GMK L9 (216,210,194) -> RAL 9001 (233,224,209) = dE 3.772
GMK L9 (216,210,194) -> RAL 9002 (215,212,203) = dE 2.9883
Lower delta-E value means closer match. Delta-E of <2 is considered imperceptible.