Color

#575d6b

#575d6b
hex#575d6b
rgbrgb(87, 93, 107)
hslhsl(222, 10%, 38%)
oklchoklch(0.478 0.024 267.1)
Closest name: Concrete Landscape (#5c606e)Relative luminance 0.1092

Colors that go with #575d6b

Cadet Blue, 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 →

#6b6557

#57676b · #5b576b

#6b575d · #5d6b57

Split-complementary

Open in tool →

#6b5b57 · #676b57

#6b5767 · #6b6557 · #576b5b

Contrast

#575d6b as textRatioAAAA largeAAAFix
Aaon white
6.6:1passpassfail
  • AAA: use #535865 as the text (7.11:1)
Aaon black
3.18:1failpassfail
  • AA: use #6e7687 as the text (4.6:1)
  • AAA: use #9298a5 as the text (7.26:1)
  • AA: or shift the background to #d6d6d6 (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 #575d6b as the background.

Brands using this color

mcpConnect your agent — build around #575d6b
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 #575d6b and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/575d6b-9ca3c4-df6e4e-211f2d-e9eff1?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