#!/bin/bash

[ -z "$1" ] && echo "Usage: ${0##*/} string" && exit 1
string="$*"

fg_range=( 34 40 46 82 86 123 87 81 51 45 39 33 27 )

color_string=''
for (( i=0 ; i <= "${#string}" ; i++ )); do
	color_string="${color_string}\e[38;5;${fg_range[$i]}m${string:${i}:1}"
done
color_string="${color_string}\e[0;0m"

echo -e "colored string:  '${color_string}'"
echo    "raw ansi string: '${color_string}'"