colors-16.sh

#!/usr/bin/env bash

# Special
readonly DIM="$(tput dim)"
readonly REVERSE="$(tput rev)"
readonly RESET="$(tput sgr0)"
readonly BOLD="$(tput bold)"

echo "Colors: $(tput colors)    Text Number: [FG-BG]"
echo
echo " BLACK    RED    GREEN   YELLOW   BLUE   PURPLE   CYAN   WHITE "

COLOR_ORDER_FULL=(0 8 1 9 2 10 3 11 4 12 5 13 6 14 7 15)
COLOR_ORDER_NORMAL=(0 1 2 3 4 5 6 7)
COLOR_ORDER_BRIGHT=(8 9 10 11 12 13 14 15)

for row in "${COLOR_ORDER_FULL[@]}"; do
  FG="$(tput setaf "$row")"

  for col in "${COLOR_ORDER_NORMAL[@]}"; do
    BG="$(tput setab "$col")"
    TEXT="$(printf "%02d-%02d" $row $col)"
    printf "$BG$FG $TEXT $RESET "
  done
  echo
done

echo

for row in "${COLOR_ORDER_FULL[@]}"; do
  FG="$(tput setaf "$row")"

  for col in "${COLOR_ORDER_BRIGHT[@]}"; do
    BG="$(tput setab "$col")"
    TEXT="$(printf "%02d-%02d" $row $col)"
    printf "$BG$FG $TEXT $RESET "
  done
  echo
done