Eclipse
#3f3939
Cool, muted iron gray for low-contrast UI
About Eclipse
I keep Eclipse on my dark canvases when the other charcoals feel either too brown or too close to black. It's a charcoal-gray that reads smoother and more restrained, with a neutral undertone that doesn't drift warm like Cowboy, and doesn't pick up the faint brownish cast that Black Truffle carries.
Compared to those nearby shades, Eclipse sits a touch brighter and steadier, so UI surfaces feel crisp without looking harsh. I reach for it in dark UI shells for SaaS admin panels, media-heavy dashboards, and photo or video players where controls should be present but never steal focus. Dashboards and finance apps benefit from its calm base when you're layering dense tables, graphs, and dark cards. It also plays nicely with desaturated greens and steel blues, because the background stays level.
One quirk: on large, flat areas it can look a bit smoky, so I usually break it up with subtle border contrast or slightly lighter grays for hierarchy.
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
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