Color
#51001f
#51001frgb(81, 0, 31)hsl(337, 100%, 16%)oklch(0.279 0.112 7)Colors that go with #51001f
Charcoal, Steel Blue and Teal 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 #51001f: its slight blue cast keeps type crisp beside a warm colour where pure #000 looks heavy.
Steel Blue #4682b4
triadicshippedSteel Blue completes a triad with #51001f — three hues spaced evenly round the wheel, the classic way to get energy into a palette without a clash.
Teal #008080
complementaryshippedTeal sits directly opposite #51001f on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight.
Amber #ffbf00
shippedAmber is paired with #51001f in 4 real palettes, including Maple and McDonald's's brand system, as the accent.
Blue #0000ff
shipped8 real palettes, including Tim Hortons's brand system and Sketch's brand system put Blue beside #51001f, as the accent.
Champagne #f7e7ce
shipped5 real palettes, including Darkroom and Allbirds's brand system put Champagne beside #51001f, as the surface under it.
Chocolate #d2691e
shippedChocolate shows up next to #51001f in 4 real palettes, including Wellness and Farmers Market, as the accent.
Copper #b87333
shippedDesigners have shipped Copper with #51001f: 8 real palettes, including Chipotle's brand system and Bakery, as the accent.
Real palettes that use #51001f
Tints & shades
Harmonies
Contrast
| #51001f as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 15.33:1 | pass | pass | pass | Passes AAA — no fix needed. |
Aaon black | 1.37:1 | 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 #51001f as the background.
Brands using this color
Fonts for this mood
#51001f 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 #51001f and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
/palettes/new/51001f-c49ca7-62cb70-2d201f-f1e9f0?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