1. What does it mean?
쿨톤 comes from cool tone. Beauty posts use it for cooler color families and for the appearance those colors are thought to complement. Product descriptions may label lip, cheek, or eye colors as 쿨톤 shades.
Also written or said as kulton
2. The nuance
It is not a synonym for pale skin or a low body temperature. The category is a broad styling label; it does not determine which colors a person is allowed to enjoy.
3. Examples
“쿨톤 추천 립도 조명에 따라 다르게 보이더라.”
Even lip colors recommended for cool tones looked different under different lighting.
“쿨톤 색상만 보다가 이번엔 다른 계열도 골라 봤어.”
After looking only at cool-toned shades, I tried choosing from another palette this time.
Sources
References support the meaning and usage. Example sentences are written for NoCapWiki.