diff --git a/src/utils.jl b/src/utils.jl
index 46b40e32..add74fa9 100644
--- a/src/utils.jl
+++ b/src/utils.jl
@@ -134,6 +134,7 @@ _cycle(cl::PlotUtils.AbstractColorList, idx::Int) = cl[mod1(idx, end)]
 _cycle(cl::PlotUtils.AbstractColorList, idx::AVec{Int}) = cl[mod1.(idx, end)]
 
 _as_gradient(grad) = grad
+_as_gradient(v::AbstractVector{<:Colorant}) = cgrad(v)
 _as_gradient(cp::ColorPalette) = cgrad(cp, categorical = true)
 _as_gradient(c::Colorant) = ColorGradient([c,c])