Color

#52636f

#52636f
hex#52636f
rgbrgb(82, 99, 111)
hslhsl(205, 15%, 38%)
oklchoklch(0.49 0.028 238.9)
Closest name: Concrete Landscape (#5c606e)Relative luminance 0.1187

Colors that go with #52636f

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.

Tints & shades

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

Harmonies

Complementary

Open in tool →

#6f5e52

#526f6d · #52556f

#6f5263 · #636f52

Split-complementary

Open in tool →

#6f5255 · #6f6d52

#6d526f · #6f5e52 · #556f52

Contrast

#52636f as textRatioAAAA largeAAAFix
Aaon white
6.23:1passpassfail
Aaon black
3.37:1failpassfail
  • AA: use #647887 as the text (4.58:1)
  • AAA: use #8799a6 as the text (7.14:1)
  • AA: or shift the background to #dedede (4.63:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #52636f as the background.

Brands using this color

mcpConnect your agent — build around #52636f
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 #52636f and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/52636f-9cafc4-df4e58-1f212d-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