Lovat is a sort of dull, dusty mix of green, grey and blue used largely in textiles; more so for tweed, plaid and woolen fabrics.
The colour name traces its origins back to nobleman Thomas Alexander Fraser (17 June 1802 – 28 June 1875) 12th Lord Lovat, 1st Baron Lovat KT, and 21st MacShimidh (the traditional Gaelic patronym for the Chiefs of the Clan Fraser) who spent most of his career seeing to the completion of restoring Lovat titles and lands. His preference for muted colours in his hunting tweeds influenced the naming of this colour.
The use of the name as the colour appears in history between the years 1905 and 1910.