Color

#685c9d

#685c9d
hex#685c9d
rgbrgb(104, 92, 157)
hslhsl(251, 26%, 49%)
oklchoklch(0.515 0.101 290.9)
Closest name: Passion Flower (#6f5698)Relative luminance 0.1303

Colors that go with #685c9d

Charcoal, Sea Green and Amber 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 #685c9d

Tints & shades

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

Harmonies

Complementary

Open in tool →

#929d5c

#5c719d · #895c9d

#9d685c · #5c9d68

Split-complementary

Open in tool →

#9d895c · #719d5c

#9d5c71 · #929d5c · #5c9d89

Contrast

#685c9d as textRatioAAAA largeAAAFix
Aaon white
5.82:1passpassfail
Aaon black
3.61:1failpassfail
  • AA: use #796eaa as the text (4.62:1)
  • AAA: use #9a92bf as the text (7.24:1)
  • AA: or shift the background to #e3e3e3 (4.54:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #685c9d 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 #685c9d
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 #685c9d and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/685c9d-a89cc4-dfb34e-281f2d-e9ecf1?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