Color

#55646d

#55646d
hex#55646d
rgbrgb(85, 100, 109)
hslhsl(203, 12%, 38%)
oklchoklch(0.494 0.023 234.3)
Closest name: Concrete Landscape (#5c606e)Relative luminance 0.1215

Colors that go with #55646d

Charcoal, 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 →

#6d5e55

#556d6a · #55586d

#6d5564 · #646d55

Split-complementary

Open in tool →

#6d5558 · #6d6a55

#6a556d · #6d5e55 · #586d55

Contrast

#55646d as textRatioAAAA largeAAAFix
Aaon white
6.12:1passpassfail
  • AAA: use #4c5961 as the text (7.22:1)
Aaon black
3.43:1failpassfail
  • AA: use #677983 as the text (4.64:1)
  • AAA: use #8a99a3 as the text (7.17:1)
  • AA: or shift the background to #dedede (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 #55646d as the background.

Brands using this color

mcpConnect your agent — build around #55646d
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 #55646d and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/55646d-9cb0c4-df4e5d-1f222d-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