Color

#57706f

#57706f
hex#57706f
rgbrgb(87, 112, 111)
hslhsl(178, 13%, 39%)
oklchoklch(0.525 0.029 193.3)
Closest name: Batman (#656e72)Relative luminance 0.1476

Colors that go with #57706f

Charcoal, Champagne 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 #57706f

Tints & shades

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

Harmonies

Complementary

Open in tool →

#705757

#577063 · #576470

#705770 · #707057

Split-complementary

Open in tool →

#705764 · #706357

#635770 · #705757 · #647057

Contrast

#57706f as textRatioAAAA largeAAAFix
Aaon white
5.31:1passpassfail
  • AAA: use #475c5c as the text (7.11:1)
Aaon black
3.95:1failpassfail
  • AA: use #5f7c7b as the text (4.66:1)
  • AAA: use #7d9b9a as the text (7.03:1)
  • AA: or shift the background to #ededed (4.54:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #57706f 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 #57706f
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 #57706f and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/57706f-a2bcbe-d45999-1f282d-e9f1ed?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