Closing this. For future readers, the answer is:
get_color_palette(:auto, plot_color(:white), 17)
As in,
cur_colors = get_color_palette(:auto, plot_color(:white), 17)
pp = linspace(0,1)
plot()
for (cur_index, cur_color) in enumerate(cur_colors[1:7])
plot!(pp, 0+pp+cur_index-7)
end
for (cur_index, cur_color) in enumerate(cur_colors[1:7])
plot!(pp, 1-pp+cur_index-7, color=cur_color)
end
plot!()