Color

#511f4f

#511f4f
hex#511f4f
rgbrgb(81, 31, 79)
hslhsl(302, 45%, 22%)
oklchoklch(0.333 0.1 329.1)
Closest name: Murasaki (#4f284b)Relative luminance 0.0329

Colors that go with #511f4f

Charcoal, 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.

Real palettes that use #511f4f

Tints & shades

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

Harmonies

Complementary

Open in tool →

#1f5121

#3a1f51 · #511f36

#50511f · #1f5051

Split-complementary

Open in tool →

#36511f · #1f513a

#513a1f · #1f5121 · #1f3651

Contrast

#511f4f as textRatioAAAA largeAAAFix
Aaon white
12.66:1passpasspassPasses AAA — no fix needed.
Aaon black
1.66:1failfailfail
  • AA: use #b946b5 as the text (4.61:1)
  • AAA: use #cd7aca as the text (7.23:1)
  • AA: or shift the background to #9c9c9c (4.61:1)
  • AAA: or shift the background to #c2c2c2 (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 #511f4f 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

#511f4f reads as warm, dark, luxury. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #511f4f
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 #511f4f and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/511f4f-c19fbc-91cb62-2d1f27-eee9f1?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