Matterhorn
#524b4b
Neutral, slightly lighter gray-brown for balanced UI
About Matterhorn
I drop Matterhorn on the canvas when I need a gray that feels grounded but never turns earthy or ink-like. It reads as a medium-dark neutral with a cool, steady undertone, like a wall that's been sitting in shade. Compared with Chinotto, it gives up that faint lived-in warmth; compared with Dampened Black, it stays a touch lighter and cleaner, not washed; and next to Off the Beaten Path, it doesn't pick up that cocoa murk.
This is the one I reach for when I want the UI to hold its structure without looking heavy. I use it in product dashboards, newsroom CMS layouts, and catalog admin tables where rows, chips, and panel headers need to feel consistent from a distance. It also behaves nicely behind muted photography, because it doesn't pull the scene toward brown.
Quirk: because it sits cool and mid-dark, pair it with crisp borders and slightly softer text weights, or your lines can feel a bit tight.
Code snippets
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Contrast checker
WCAG 2.1 contrast ratios. AA requires 4.5:1 for normal text, 3:1 for large. AAA requires 7:1 / 4.5:1.
On White #ffffff
On Gray 100 #f5f5f5
On Gray 900 #18181b
On Black #000000
Variations
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Tints
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Tones
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