@replace @arr
// Set 8 colors that will be used to fill the color picker palette in the Customizer
add_filter( 'generate_default_color_palettes', function ( $palettes ) {
return array(
'#040404',
'#5b5549',
'#9b5c4d',
'#d3ac58',
'#296a7f',
'#272727',
'#adada8',
'#f5f5f5',
);
} );