Color

#685c99

#685c99
hex#685c99
rgbrgb(104, 92, 153)
hslhsl(252, 25%, 48%)
oklchoklch(0.513 0.095 291.7)
Closest name: Passion Flower (#6f5698)Relative luminance 0.129

Colors that go with #685c99

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.

Tints & shades

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

Harmonies

Complementary

Open in tool →

#8d995c

#5c6e99 · #875c99

#99685c · #5c9968

Split-complementary

Open in tool →

#99875c · #6e995c

#995c6e · #8d995c · #5c9987

Contrast

#685c99 as textRatioAAAA largeAAAFix
Aaon white
5.87:1passpassfail
  • AAA: use #5b5086 as the text (7.15:1)
Aaon black
3.58:1failpassfail
  • AA: use #786ca7 as the text (4.5:1)
  • AAA: use #9b93be as the text (7.31:1)
  • AA: or shift the background to #e3e3e3 (4.57:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #685c99 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 #685c99
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 #685c99 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/685c99-a99cc4-dfb64e-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