https://bitbucket.org/durdn/cfg/src/master/.bin/colors.sh

colors.sh

function colors1() {
  echo -e "\n\033[4;31mLight Colors\033[0m  \t\t\033[1;4;31mDark Colors\033[0m"

  echo -e "\e[0;30;47m Black    \e[0m 0;30m \t\e[1;30;40m Dark Gray  \e[0m 1;30m"
  echo -e "\e[0;31;47m Red      \e[0m 0;31m \t\e[1;31;40m Dark Red   \e[0m 1;31m"
  echo -e "\e[0;32;47m Green    \e[0m 0;32m \t\e[1;32;40m Dark Green \e[0m 1;32m"
  echo -e "\e[0;33;47m Brown    \e[0m 0;33m \t\e[1;33;40m Yellow     \e[0m 1;33m"
  echo -e "\e[0;34;47m Blue     \e[0m 0;34m \t\e[1;34;40m Dark Blue  \e[0m 1;34m"
  echo -e "\e[0;35;47m Magenta  \e[0m 0;35m \t\e[1;35;40m DarkMagenta\e[0m 1;35m"
  echo -e "\e[0;36;47m Cyan     \e[0m 0;36m \t\e[1;36;40m Dark Cyan  \e[0m 1;36m"
  echo -e "\e[0;37;47m LightGray\e[0m 0;37m \t\e[1;37;40m White      \e[0m 1;37m"
}

function colors2() {
  for i in {0..255} ; do
    printf "\x1b[38;5;${i}mcolour${i}\n"
  done
}

function colors3() {
  for i in {0..255} ; do
    declare -i a="$i % 6";
    if [ $a == '0' ]; then
      printf "\x1b[38;5;${i}mcolour${i}\n";
    else
      printf "\x1b[38;5;${i}mcolour${i}  ";
    fi
  done
}