Color
#51531d
#51531drgb(81, 83, 29)hsl(62, 48%, 22%)oklch(0.428 0.075 111.2)Colors that go with #51531d
Charcoal, Blue and Copper 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 #36454f
neutralshippedCharcoal is the body-text near-black for #51531d: its slight blue cast keeps type crisp beside a warm colour where pure #000 looks heavy.
Blue #0000ff
shipped4 real palettes, including Warp's brand system and Rolex's brand system put Blue beside #51531d, as the supporting colour.
Copper #b87333
shippedDesigners have shipped Copper with #51531d: 4 real palettes, including Clay & Linen and Desert Road, as the lead colour.
Royal Blue #4169e1
split-complementshippedRoyal Blue is a split-complement of #51531d: nearly opposite, so it still pops against it, without the vibrating edge of a true complement.
Sage Green #9caf88
shippedDesigners have shipped Sage Green with #51531d: 7 real palettes, including Pine & Birch and Darkroom, as the supporting colour.
Slate Blue #6a5acd
complementarySlate Blue sits directly opposite #51531d on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight.
Blush Pink #e8b4b8
shipped3 real palettes, including Nursery and Garden Wedding put Blush Pink beside #51531d, as the lead colour.
Champagne #f7e7ce
shipped3 real palettes, including BrandSweets's brand system and Darkroom put Champagne beside #51531d.
Real palettes that use #51531d
Tints & shades
Harmonies
Contrast
| #51531d as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 8.06:1 | pass | pass | pass | Passes AAA — no fix needed. |
Aaon black | 2.6:1 | 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 #51531d 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
#51531d reads as dark, luxury, bold. 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 #51531d and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
/palettes/new/51531d-babea2-4e8fdf-272d1f-f1eee9?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