I was looking at some newly released books when one caught my eye: True Color: The Strange and Spectacular Quest to Define Color by Kory Stamper.
I started reading an excerpt from the book and came across a colour I'd never encountered before: sea pink. 😲 And, yes, it turns out that Sea Pink is a colour in the Pantone catalogue.

Naturally, I wanted to know where the name came from.
Somewhere along the way I came across a reference to ancient ocean pigments being pink. That caught my attention because it immediately brought Homer's wine-dark seas to mind.
For a moment, I wondered if I'd stumbled upon an explanation for Homer's strange description of the sea.
From there my mind jumped to Emily Wilson's Crossing the Wine-Dark Sea, which is currently sitting on my TBR list. And then, because apparently my brain wasn't done making connections, I noticed from the dedication that Emily's sister is Bee Wilson, another wonderful writer whose work about food I enjoyed a lot.
Then some fact-checking interrupted my excitement.
The ancient pigments, it turns out, weren't actually pink when they were part of living organisms. Chlorophyll contains magnesium, which gives it its green colour. But in the billion-year-old sediments that scientists studied, nickel had replaced the magnesium in the chlorophyll-derived molecules, turning them pink.
There was a word for this process that I'd never encountered before: diagenesis.
Diagenesis describes the physical and chemical changes that sediments undergo after they are deposited and buried. In this case, it helped explain how chlorophyll-derived molecules in billion-year-old sediments ended up pink.
I liked the word almost as much as the colour.
But I still hadn't answered my original question.
Where did sea pink come from?
A little botany.
Sea pink is the common name for a plant, Armeria maritima, that grows near the sea and has pink flowers. At some point, the name of the flower became the name of the colour.

And there I was, having started with a book about colour and somehow travelled through Homer, Emily Wilson, Bee Wilson, chlorophyll, billion-year-old sediments, diagenesis and a flower growing by the sea.
I suppose that's what happens when you follow a colour.

