Color

#6d577a

#6d577a
hex#6d577a
rgbrgb(109, 87, 122)
hslhsl(278, 17%, 41%)
oklchoklch(0.492 0.061 312.6)
Closest name: Plummy (#675a75)Relative luminance 0.1147

Colors that go with #6d577a

Charcoal, Champagne 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 #6d577a

Tints & shades

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

Harmonies

Complementary

Open in tool →

#647a57

#5c577a · #7a5776

#7a6d57 · #577a6d

Split-complementary

Open in tool →

#767a57 · #577a5c

#7a5c57 · #647a57 · #57767a

Contrast

#6d577a as textRatioAAAA largeAAAFix
Aaon white
6.37:1passpassfail
  • AAA: use #655071 as the text (7.14:1)
Aaon black
3.29:1failpassfail
  • AA: use #886d97 as the text (4.68:1)
  • AAA: use #a28eaf as the text (7.02:1)
  • AA: or shift the background to #d9d9d9 (4.52:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #6d577a as the background.

Brands using this color

No public brand in the corpus uses this exact color yet. Extract a brand to add one.

mcpConnect your agent — build around #6d577a
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 #6d577a and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/6d577a-ba9cc4-bbcb62-2d1f2c-ebe9f1?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