Algorithm A1 Find the nearest color

1:function closest_color( $requested\_color$ ) 2:    for  $(key,name)\in webcolors.CSS3\_HEX\_TO\_NAMES.items\left(\right)$  do 3:         $(r\_c,g\_c,b\_c)\leftarrow webcolors.hex\_to\_rgb\left(key\right)$ 4:         $distance\leftarrow {(r\_c-requested\_color\left[0\right])}^2+{(g\_c-requested\_color\left[1\right])}^2+{(b\_c-requested\_color\left[2\right])}^2$ 5:         $min\_colors\left[distance\right]\leftarrow name$ 6:    end for 7:    return  $min\_colors[min(min\_colors.keys\left(\right)\left)\right]$ 8:end function