A Hue of 5BG (a precise midpoint between blue and green), a Value of 6 (a light, medium brightness), and a Chroma of 4 (a modest, somewhat muted saturation). It was a soft, contemplative teal. The color of a glacier's shadow.

That’s when he remembered the binder. Not the software, not the formula guide. The Munsell-to-Pantone Legacy Notebook , a battered, leather-bound journal passed down from his mentor, who had gotten it from her mentor at Eastman Kodak in the 1980s. It was filled with hand-written conversion notes, light-box observations, and the accumulated wisdom of pre-digital color matching.

Do not use 7473 C. You will hate it. And worse, the historians will know.