Color

#6c577a

#6c577a
hex#6c577a
rgbrgb(108, 87, 122)
hslhsl(276, 17%, 41%)
oklchoklch(0.491 0.06 311.4)
Closest name: Plummy (#675a75)Relative luminance 0.1141

Colors that go with #6c577a

Copper, Goldenrod and Medium Sea Green 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 #6c577a

Tints & shades

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

Harmonies

Complementary

Open in tool →

#657a57

#5a577a · #7a5777

#7a6c57 · #577a6c

Split-complementary

Open in tool →

#777a57 · #577a5a

#7a5a57 · #657a57 · #57777a

Contrast

#6c577a as textRatioAAAA largeAAAFix
Aaon white
6.4:1passpassfail
  • AAA: use #645071 as the text (7.17:1)
Aaon black
3.28:1failpassfail
  • AA: use #866d97 as the text (4.65:1)
  • AAA: use #a18eaf as the text (7:1)
  • AA: or shift the background to #d9d9d9 (4.53:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #6c577a 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 #6c577a
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 #6c577a and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/6c577a-b99cc4-bfcb62-2d1f2d-eae9f1?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