diff --git a/colors/paramount.vim b/colors/paramount.vim
index 384083f..1a259e5 100644
--- a/colors/paramount.vim
+++ b/colors/paramount.vim
@@ -229,3 +229,6 @@ hi link GitGutterChangeDelete       LineNr
 " diff
 call s:h("diffAdded",   {"bg": s:bg, "fg": s:green})
 call s:h("diffRemoved", {"bg": s:bg, "fg": s:red})
+
+" diagnostic
+call s:h("DiagnosticFloatingError",    {"fg": s:norm})