Apex domains cannot have CNAME records.
Question and response
Question
dig hostcolor.net. NS
Answer
hostcolor.net. 5 NS nsc1.hostcolor.us.
hostcolor.net. 5 NS nsc2.hostcolor.us.
hostcolor.net. 5 NS nsc3.hostcolor.us.
Authority
The response has no authority records.
Additional
nsc1.hostcolor.us. 5 A 68.233.44.6
nsc2.hostcolor.us. 5 A 68.233.44.7
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0