Color

#52687a

#52687a
hex#52687a
rgbrgb(82, 104, 122)
hslhsl(207, 20%, 40%)
oklchoklch(0.506 0.039 243.3)
Closest name: Admiral Blue (#50647f)Relative luminance 0.131

Colors that go with #52687a

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.

Tints & shades

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

Harmonies

Complementary

Open in tool →

#7a6452

#527a78 · #52547a

#7a5268 · #687a52

Split-complementary

Open in tool →

#7a5254 · #7a7852

#78527a · #7a6452 · #547a52

Contrast

#52687a as textRatioAAAA largeAAAFix
Aaon white
5.8:1passpassfail
  • AAA: use #475b6b as the text (7.05:1)
Aaon black
3.62:1failpassfail
  • AA: use #5e788d as the text (4.55:1)
  • AAA: use #8299ab as the text (7.09:1)
  • AA: or shift the background to #e3e3e3 (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 #52687a as the background.

Brands using this color

mcpConnect your agent — build around #52687a
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 #52687a and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/52687a-9cadc4-df4e53-1f212d-e9f1f1?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