colorit

#!/bin/bash

function colorit(){
    local banned_colors=" 22   23   24   25   16   17   18   19   52   53   54   55   88   89   90   91 22   23   24   25 58   59   60   61  94   95   96   97  232  233  234  235  236  237  238  239  240  241  242  243  244 29  256  257  258  259  260  261  262  263  264  265  266  267 "
    local bg="$2"
    if [[ $bg == "" ]]; then
        bg=38
    else
        bg=48
    fi
    local item="$1" 
    if [[ $item == "" ]]; then
        return 0
    fi

    local salt="xyz1"

    while true; do
        local hash_val=$(( ( 0x$(md5 <<<"${item}$salt")0 ) % 227 + 3))
        if [[ $hash_val -lt 0 ]]; then
            hash_val=$(( hash_val * -1 ))
        fi
        if ! echo "$banned_colors" | grep -qw "$hash_val"; then
            break
        else
            salt+="$hash_val"
        fi
    done
    local value=0
    local colored_item=$( printf '\001\e[%d;5;%dm\002%s' "$bg" "$hash_val" "$item" )
    printf "%b" '\001\e[0m\002'"${colored_item}"'\001\e[0m\002';
}

colorit "${@:-}"