xcolor -c "Color.fromRGBO(%{r}, %{g}, %{b}, 1)" | tr -d '\n' | xclip -selection clipboard
xcolor
https://github.com/Soft/xcolor-c "Color.fromRGBO(%{r}, %{g}, %{b}, 1)"
custom format for Flutter's Color.fromRGBOtr -d '\n'
trim whitespacexclip -selection clipboard
copy to clipboard
default-s
option fromxcolor
could fails in certain paste target