No experience with LMR, but I will say I just went down to Oreilly and got their Vinyl paint/dye - Duplicolor. Their "dessert sand" was NOT a match for my interior (light sandlewood), but their "medium beige" was closer than I can tell with my man eyes.
Duplicor "Desert Sand" vs factory "Lt Sandlewood" (ashtray):
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The whole reason I bother posting (about a product you didn't ask about) is because so far it has survived abuse better than I figured a vinyl spray would and it was cheaper than all the other vinyl paint/dye. I didn't spend $$$ on adhesion promoter or sealant or or. I just cleaned the snot out of it using several steps just like you do for painting the exterior.
I don't have a side by side of the medium beige, and I would go take a pic of something except the last exterior clear coat just went on a few minutes ago - have to wait a while for pix.
I got several pieces out of the junkyard and none of em were tan so I had a bunch of interior to change the color on - center console, overhead console/map, bucket seat skirts...