pickcolor

#!/bin/bash
set -euo pipefail

main() {
    pick | parse | convert | tee >(copy >/dev/null) | format
}

pick() {
    gdbus call --session \
        --dest org.gnome.Shell.Screenshot \
        --object-path /org/gnome/Shell/Screenshot \
        --method org.gnome.Shell.Screenshot.PickColor
}

parse() {
    # parse this: ({'color': <(1.0, 1.0, 0.8666666666666667)>},)
    jq --raw-input --slurp '
          capture("<[(](?<r>\\S+), (?<g>\\S+), (?<b>\\S+)[)]>")
        | map_values(tonumber * 255 | nearbyint)
    '
}

convert() {
    perl -MJSON -0nle '
        $_ = decode_json($_);
        $_->{rgb} = join ", ", @$_{qw<r g b>};
        $_->{hex} = "#" . join "", map { sprintf "%02x", $_ } @$_{qw<r g b>};
        print encode_json($_);
    '
}

format() {
    jq --raw-output --join-output '
        "rgb: \(.rgb)\n",
        "hex: \(.hex)\n"
    '
}

copy() {
    jq --raw-output --join-output .hex | xclip -i -selection clipboard
    echo copied hex to clipboard >&2
}

main "$@"