#!/usr/bin/awk -f

#
# Ignore the header
#
NR == 1 { next }

#
# If field 2 (colour) is less than 6 characters then save it with its line
# number and skip it
#
length($2) < 6 {
    skip[NR] = $0
    next
}

#
# It's not the header and the colour name is > 6 characters, so print the line
#
{
    print
}

#
# At the end show what was skipped
#
END {
    printf "\nSkipped:\n"
    for (n in skip)
        print n": "skip[n]
}