Color

#511f4c

#511f4c
hex#511f4c
rgbrgb(81, 31, 76)
hslhsl(306, 45%, 22%)
oklchoklch(0.332 0.098 331.5)
Closest name: Murasaki (#4f284b)Relative luminance 0.0325

Colors that go with #511f4c

Sea Green, Cadet 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.

Real palettes that use #511f4c

Tints & shades

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

Harmonies

Complementary

Open in tool →

#1f5124

#3d1f51 · #511f33

#4c511f · #1f4c51

Split-complementary

Open in tool →

#33511f · #1f513d

#513d1f · #1f5124 · #1f3351

Contrast

#511f4c as textRatioAAAA largeAAAFix
Aaon white
12.73:1passpasspassPasses AAA — no fix needed.
Aaon black
1.65:1failfailfail
  • AA: use #b946ad as the text (4.54:1)
  • AAA: use #cd7ac4 as the text (7.18:1)
  • AA: or shift the background to #9c9c9c (4.64:1)
  • AAA: or shift the background to #c2c2c2 (7.14:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #511f4c 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

#511f4c reads as warm, dark, luxury. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #511f4c
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 #511f4c and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/511f4c-c19fb9-8acb62-2d1f26-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