Color

#585c6f

#585c6f
hex#585c6f
rgbrgb(88, 92, 111)
hslhsl(230, 12%, 39%)
oklchoklch(0.478 0.031 275.8)
Closest name: Concrete Landscape (#5c606e)Relative luminance 0.1088

Colors that go with #585c6f

Champagne, Copper and Crimson 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 →

#6f6b58

#58676f · #5f586f

#6f585b · #5b6f58

Split-complementary

Open in tool →

#6f5f58 · #676f58

#6f5867 · #6f6b58 · #586f5f

Contrast

#585c6f as textRatioAAAA largeAAAFix
Aaon white
6.61:1passpassfail
  • AAA: use #53576a as the text (7.14:1)
Aaon black
3.18:1failpassfail
  • AA: use #70758f as the text (4.63:1)
  • AAA: use #9296aa as the text (7.17:1)
  • AA: or shift the background to #d6d6d6 (4.55:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #585c6f as the background.

Brands using this color

mcpConnect your agent — build around #585c6f
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 #585c6f and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/585c6f-9c9ec4-df814e-231f2d-e9eef1?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