It's actually called "teal" in X11: https://en.wikipedia.org/wiki/X11_color_names#Color_name_chart https://en.wikipedia.org/wiki/X11_color_names#Color_name_cha.

It's actually called "teal" in X11: https://en.wikipedia.org/wiki/X11_color_names#Color_name_chart https://en.wikipedia.org/wiki/X11_color_names#Color_name_cha... — It's also available on Windows 10 by default where it's called "Seafoam Teal"