S.O.S. 7:4, K.J.V.
Thy neck is as a tower of ivory; thine eyes like the fishpools in Heshbon, by the gate of Bathrabbim: thy nose is as the tower of Lebanon which looketh toward Damascus.
Ivory:
A hard creamy-white substance composing the main part of the tusks of an elephant, walrus, or narwhal.
It actually helps one's understanding to start reading the book from the beginning rather just than pulling something out of the middle and extrapolating narrow implications from it.
A "creamy-white" appearance is but one attribute to describe ivory. Ivory tusks are often described by their smoothness, as well. Eyes described as fish pools and a nose like a tower are all descriptions freely availing themselves of poetic license -- as a song relying on imagery as it does here allows.
Let's take it from the top, shall we?
Song of Solomon 1 King James Version (KJV)
"1 The song of songs, which is Solomon's.
2 Let him kiss me with the kisses of his mouth: for thy love is better than wine.
3 Because of the savour of thy good ointments thy name is as ointment poured forth, therefore do the virgins love thee.
4 Draw me, we will run after thee: the king hath brought me into his chambers: we will be glad and rejoice in thee, we will remember thy love more than wine: the upright love thee.
5 I am black, but comely, O ye daughters of Jerusalem, as the tents of Kedar, as the curtains of Solomon.
6 Look not upon me, because I am black, because the sun hath looked upon me:"
That said, there is such a thing as "Ivory Black" -- the carbon black of charred ivory.
But of course, let's also not over look the somewhat less relevant BLACK IVORY!
FReegards!
5 I am black, but comely, O ye daughters of Jerusalem, as the tents of Kedar, as the curtains of Solomon.
6 Look not upon me, because I am black, because the sun hath looked upon me:”
That’s Solomon speaking of himself. Read it in context, there’s a dialogue going on between Soilomon and the Shulamite.
Well, it didn’t take me long to realize that I should not be engaging in this kind of back and forth with you because you are most likely a Christian too and at least my part of the conversation is unseemly. I do humbly apologize to you my brother or sister, as the case may be and retract the snide things I said.
May God bless you and yours as richly as He has blessed me and mine.