Color

#52636b

#52636b
hex#52636b
rgbrgb(82, 99, 107)
hslhsl(199, 13%, 37%)
oklchoklch(0.488 0.024 228)
Closest name: Concrete Landscape (#5c606e)Relative luminance 0.1178

Colors that go with #52636b

Charcoal, Blush Pink and Cadet 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 →

#6b5a52

#526b66 · #52576b

#6b5263 · #636b52

Split-complementary

Open in tool →

#6b5257 · #6b6652

#66526b · #6b5a52 · #576b52

Contrast

#52636b as textRatioAAAA largeAAAFix
Aaon white
6.26:1passpassfail
  • AAA: use #4b5b62 as the text (7.07:1)
Aaon black
3.36:1failpassfail
  • AA: use #647882 as the text (4.55:1)
  • AAA: use #8699a2 as the text (7.09:1)
  • AA: or shift the background to #dbdbdb (4.52:1)

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

Brands using this color

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

tool url/palettes/new/52636b-9cb3c4-df4e66-1f232d-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