Color

#57707f

#57707f
hex#57707f
rgbrgb(87, 112, 127)
hslhsl(203, 19%, 42%)
oklchoklch(0.531 0.038 234.8)
Closest name: Ashen Whisper (#646b7a)Relative luminance 0.1515

Colors that go with #57707f

Charcoal, Sienna 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 #57707f

Tints & shades

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

Harmonies

Complementary

Open in tool →

#7f6657

#577f7b · #575b7f

#7f5770 · #707f57

Split-complementary

Open in tool →

#7f575b · #7f7b57

#7b577f · #7f6657 · #5b7f57

Contrast

#57707f as textRatioAAAA largeAAAFix
Aaon white
5.21:1passpassfail
  • AAA: use #465b67 as the text (7.11:1)
Aaon black
4.03:1failpassfail
  • AA: use #5d7889 as the text (4.51:1)
  • AAA: use #8099a8 as the text (7.04:1)
  • AA: or shift the background to #f0f0f0 (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 #57707f 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 #57707f
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 #57707f and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/57707f-9cb0c4-df4e5d-1f222d-e9f1f0?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