printf '1 2 3 \033[30m4\033[m'

# foreground colours
    printf '\033[30m black \033[m'
    printf '\033[31m red \033[m'
    printf '\033[32m green \033[m'
    printf '\033[33m yellow \033[m'
    printf '\033[34m blue \033[m'
    printf '\033[35m magenta \033[m'
    printf '\033[36m cyan \033[m'
    printf '\033[37m white \033[m'

    # background colours
    printf '\033[40m black \033[m'
    printf '\033[41m red \033[m'
    printf '\033[42m green \033[m'
    printf '\033[43m yellow \033[m'
    printf '\033[44m blue \033[m'
    printf '\033[45m magenta \033[m'
    printf '\033[46m cyan \033[m'
    printf '\033[47m white \033[m'

    # other
    printf '\033[0m default \033[m'
    printf '\033[1m bold \033[m'
    printf '\033[2m faint \033[m'
    printf '\033[3m italic \033[m'
    printf '\033[4m underlined \033[m'
    printf '\033[5m slowblink \033[m'
    printf '\033[6m rapidblink \033[m'
    printf '\033[7m negative \033[m'