Color

#686d8d

#686d8d
hex#686d8d
rgbrgb(104, 109, 141)
hslhsl(232, 15%, 48%)
oklchoklch(0.543 0.05 277.7)
Closest name: Dark Prince (#6b6c89)Relative luminance 0.158

Colors that go with #686d8d

Charcoal, Dark Olive 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 #686d8d

Tints & shades

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

Harmonies

Complementary

Open in tool →

#8d8868

#687f8d · #76688d

#8d686d · #6d8d68

Split-complementary

Open in tool →

#8d7668 · #7f8d68

#8d687f · #8d8868 · #688d76

Contrast

#686d8d as textRatioAAAA largeAAAFix
Aaon white
5.05:1passpassfail
  • AAA: use #52566f as the text (7.19:1)
Aaon black
4.16:1failpassfail
  • AA: use #6f7495 as the text (4.61:1)
  • AAA: use #9296af as the text (7.2:1)
  • AA: or shift the background to #f2f2f2 (4.51:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #686d8d 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 #686d8d
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 #686d8d and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/686d8d-9c9dc4-df864e-231f2d-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