Color

#686bac

#686bac
hex#686bac
rgbrgb(104, 107, 172)
hslhsl(237, 29%, 54%)
oklchoklch(0.554 0.1 280.6)
Closest name: Loch Ness (#5f6db0)Relative luminance 0.1644

Colors that go with #686bac

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 →

#aca868

#688dac · #8668ac

#ac686b · #6bac68

Split-complementary

Open in tool →

#ac8668 · #8dac68

#ac688d · #aca868 · #68ac86

Contrast

#686bac as textRatioAAAA largeAAAFix
Aaon white
4.9:1passpassfail
  • AAA: use #505391 as the text (7.03:1)
Aaon black
4.29:1failpassfail
  • AA: use #6e72af as the text (4.69:1)
  • AAA: use #8f92c1 as the text (7.05:1)
  • AA: or shift the background to #f7f7f7 (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 #686bac 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 #686bac
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 #686bac and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/686bac-9f9cc4-df924e-251f2d-e9edf1?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