Color

#511900

#511900
hex#511900
rgbrgb(81, 25, 0)
hslhsl(19, 100%, 16%)
oklchoklch(0.3 0.091 41.8)
Closest name: Chocolate Rush (#4e1b0b)Relative luminance 0.0244

Colors that go with #511900

Charcoal, Crimson and Denim 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.

Tints & shades

Every swatch is its own page — click any to analyze it.

Harmonies

Complementary

Open in tool →

#003852

#52000f · #524300

#00521a · #1a0052

Split-complementary

Open in tool →

#005243 · #000f52

#0f5200 · #003852 · #430052

Contrast

#511900 as textRatioAAAA largeAAAFix
Aaon white
14.1:1passpasspassPasses AAA — no fix needed.
Aaon black
1.49:1failfailfail
  • AA: use #d64400 as the text (4.69:1)
  • AAA: use #ff621a as the text (7.01:1)
  • AA: or shift the background to #949494 (4.65:1)
  • AAA: or shift the background to #b8b8b8 (7.11:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #511900 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

#511900 reads as warm, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #511900
live endpoint

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.

endpointhttps://mcp.brandsweets.com/colors/mcp
claude mcp add --transport http brandsweets-colors https://mcp.brandsweets.com/colors/mcp
try this prompt

analyze #511900 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/511900-c4ad9c-62cbb9-2d2a1f-f1e9eb?lock=0&style=vibrant

Want the agent to remember your picks and write them into a living brand? Create a free BrandSweets workspace.

Machine-readable: color.md