Color

#686ca1

#686ca1
hex#686ca1
rgbrgb(104, 108, 161)
hslhsl(236, 23%, 52%)
oklchoklch(0.55 0.082 280)
Closest name: Loch Ness (#5f6db0)Relative luminance 0.1624

Colors that go with #686ca1

Charcoal, Amber and Cobalt Blue 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 #686ca1

Tints & shades

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

Harmonies

Complementary

Open in tool →

#a19d68

#6888a1 · #8168a1

#a1686c · #6ca168

Split-complementary

Open in tool →

#a18168 · #88a168

#a16888 · #a19d68 · #68a181

Contrast

#686ca1 as textRatioAAAA largeAAAFix
Aaon white
4.94:1passpassfail
  • AAA: use #515481 as the text (7.16:1)
Aaon black
4.25:1failpassfail
  • AA: use #6f72a5 as the text (4.63:1)
  • AAA: use #9194ba as the text (7.15:1)
  • AA: or shift the background to #f5f5f5 (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 #686ca1 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 #686ca1
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 #686ca1 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/686ca1-9e9cc4-df8f4e-241f2d-e9eef1?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