what is the correct term for this colour?

Insipid

Flesh is blood red anyway, so the word was always a misnomer for the colour. I have always called it 'underwear pink' because in my youth corsets were always that colour.

I bought some knickers labelled ‘Almond’ that fill that bill for me ?

Yes, maybe peach is closer than pink

I found this.

USAGE ALERT ABOUT FLESH COLOUR
While flesh colour originally meant the skin tone of white people, that meaning has been criticized as exclusionary and is now considered offensive. In fact, the term is no longer commonly used without qualifying it with a specific hue, such as peach flesh colour or dark flesh colour . The word nude in the past has been used to describe a similar hue approximating a white person's skin color and has been criticized for the same reason.

It's difficult to think of an appropriate word.

Calamine, pale rose, peach.

Blush pink?