Color
#540d3f
#540d3frgb(84, 13, 63)hsl(318, 73%, 19%)oklch(0.309 0.116 343)Colors that go with #540d3f
Crimson, Sea Green and Blue 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.
Crimson #dc143c
analogousshippedCrimson is #540d3f's neighbour on the wheel, so the two read as one family — use it for hover states, gradients and secondary surfaces.
Sea Green #2e8b57
complementaryshippedSea Green sits directly opposite #540d3f on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight.
Blue #0000ff
shipped5 real palettes, including Tim Hortons's brand system and Sketch's brand system put Blue beside #540d3f, as the accent.
Copper #b87333
shippedDesigners have shipped Copper with #540d3f: 4 real palettes, including Bramble and Chipotle's brand system, as the supporting colour.
Denim #1560bd
shippedDesigners have shipped Denim with #540d3f: 6 real palettes, including Heinz's brand system and Hinge's brand system, as the accent.
Midnight Blue #191970
shipped4 real palettes, including Tide Pool and Volkswagen's brand system put Midnight Blue beside #540d3f, as that palette's text colour.
Royal Blue #4169e1
shippedRoyal Blue is paired with #540d3f in 4 real palettes, including Rotten Tomatoes's brand system and Docker's brand system, as the supporting colour.
Charcoal #36454f
neutralshippedCharcoal is the body-text near-black for #540d3f: its slight blue cast keeps type crisp beside a warm colour where pure #000 looks heavy.
Real palettes that use #540d3f
Tints & shades
Harmonies
Contrast
| #540d3f as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 13.94:1 | pass | pass | pass | Passes AAA — no fix needed. |
Aaon black | 1.51:1 | 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 #540d3f as the background.
Brands using this color
No public brand in the corpus uses this exact color yet. Extract a brand to add one.
Fonts for this mood
#540d3f reads as warm, vivid, dark. 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 #540d3f and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
/palettes/new/540d3f-c19fb3-75cb62-2d1f23-f0e9f1?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