Color

#57686b

#57686b
hex#57686b
rgbrgb(87, 104, 107)
hslhsl(189, 10%, 38%)
oklchoklch(0.504 0.021 209.4)
Closest name: Dark Forest (#556962)Relative luminance 0.1299

Colors that go with #57686b

Charcoal, Champagne and Copper 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 →

#6b5a57

#576b64 · #575e6b

#6b5768 · #686b57

Split-complementary

Open in tool →

#6b575e · #6b6457

#64576b · #6b5a57 · #5e6b57

Contrast

#57686b as textRatioAAAA largeAAAFix
Aaon white
5.84:1passpassfail
  • AAA: use #4c5a5d as the text (7.17:1)
Aaon black
3.6:1failpassfail
  • AA: use #65787b as the text (4.53:1)
  • AAA: use #86999c as the text (7.05:1)
  • AA: or shift the background to #e3e3e3 (4.55:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #57686b 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 #57686b
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 #57686b and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/57686b-a2b7be-df4e7e-1f252d-e9f1ee?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