Trailhead
Open in tool →Rust, pine and sun — high-visibility earth tones that read at a distance and on a trail sign.
Color
#3f540drgb(63, 84, 13)hsl(78, 73%, 19%)oklch(0.414 0.097 125.4)Charcoal, Blue and Saddle Brown lead the list. Each partner is a real named colour with the reason it works — a wheel relationship, a neutral that carries it, or a pairing lifted from a palette or brand system that actually shipped — and every pair opens in the palette tool.
Charcoal is the body-text near-black for #3f540d: its slight blue cast keeps type crisp beside a warm colour where pure #000 looks heavy.
4 real palettes, including Rolex's brand system and Warp's brand system put Blue beside #3f540d, as the accent.
Designers have shipped Saddle Brown with #3f540d: 4 real palettes, including Bookshop and Cider, as the lead colour.
Designers have shipped Sage Green with #3f540d: 7 real palettes, including Pine & Birch and Darkroom, as the supporting colour.
Taupe is paired with #3f540d in 14 real palettes, including Pine & Birch and Bookshop, as that palette's text colour.
Blue Violet sits directly opposite #3f540d on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight.
Royal Blue is a split-complement of #3f540d: nearly opposite, so it still pops against it, without the vibrating edge of a true complement.
3 real palettes, including Sweetgreen's brand system and Darkroom put Champagne beside #3f540d, as the supporting colour.
| #3f540d as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 8.45:1 | pass | pass | pass | Passes AAA — no fix needed. |
Aaon black | 2.49:1 | fail | fail | fail |
Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #3f540d as the background.
No public brand in the corpus uses this exact color yet. Extract a brand to add one.
#3f540d reads as vivid, dark, luxury. The font library is tagged with the same vocabulary:
Point any MCP client at the shared colors endpoint and your agent gets the same engine as this page — direct_palette, edit_direction, check_palette, check_contrast — read-only, no key. Every direction it proposes comes with a /colors/d/… link: open it, lock what you like, paste the link back, and the agent edits rather than re-rolls.
https://mcp.brandsweets.com/colors/mcpclaude mcp add --transport http brandsweets-colors https://mcp.brandsweets.com/colors/mcp
›analyze #3f540d and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
/palettes/new/3f540d-b2bea2-4e69df-232d1f-f1f0e9?lock=0&style=vibrantWant the agent to remember your picks and write them into a living brand? Create a free BrandSweets workspace.
Machine-readable: color.md