Hooking into the ACF color picker and adding the colors

functions.php

/**
 * Add the colors into Iris
 */
add_action( 'acf/input/admin_footer', 'gutenberg_sections_register_acf_color_palette' );
function gutenberg_sections_register_acf_color_palette() {

    $color_palette = output_the_colors();
    if ( !$color_palette )
        return;
    
    ?>
    <script type="text/javascript">
        (function( $ ) {
            acf.add_filter( 'color_picker_args', function( args, $field ){

                // add the hexadecimal codes here for the colors you want to appear as swatches
                args.palettes = <?php echo $color_palette; ?>

                // return colors
                return args;

            });
        })(jQuery);
    </script>
    <?php

}