The Merperson: Light Skin Tone emoji is a modifier sequence combining ? Merperson and ? Light Skin Tone. These display as a single emoji on supported platforms.
Merperson: Light Skin Tone was added to Emoji 5.0 in 2017.
U+1F9DC
U+1F3FB
?? Merperson
?? Emoji modifier fitzpatrick type-1-2