I share my code for those who want
PHP
<?php if( have_rows('field_name_repeater') ): ?>
<?php while( have_rows('field_name_repeater') ): the_row();
$color = get_sub_field('fied_colorpicker');
?>
<div class="color-repeat" data-color="<?php echo $color; ?>">
<div class="colorName"></div>
</div>
<?php endwhile; ?>
<?php endif; ?>
JS :
$('.color-repeat').each(function( ) {
var color = $(this).data( "color" );
var n_match = ntc.name(color);
n_name = n_match[1]; // Text string: Color name
$(this).find(".colorName").text(n_name);
});