Color

#55636d

#55636d
hex#55636d
rgbrgb(85, 99, 109)
hslhsl(205, 12%, 38%)
oklchoklch(0.492 0.024 239.1)
Closest name: Concrete Landscape (#5c606e)Relative luminance 0.1196

Tints & shades

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

Harmonies

Complementary

Open in tool →

#6d5f55

#556d6b · #55576d

#6d5563 · #636d55

Split-complementary

Open in tool →

#6d5557 · #6d6b55

#6b556d · #6d5f55 · #576d55

Contrast

#55636d as textRatioAAAA largeAAAFix
Aaon white
6.19:1passpassfail
  • AAA: use #4c5861 as the text (7.3:1)
Aaon black
3.39:1failpassfail
  • AA: use #677883 as the text (4.59:1)
  • AAA: use #8a99a3 as the text (7.17:1)
  • AA: or shift the background to #dedede (4.6:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #55636d as the background.

Brands using this color

mcpConnect your agent — build around #55636d
live endpoint

Point any MCP client at the shared colors endpoint and your agent gets the same engine as this page — generate_palette, check_contrast, analyze_color — read-only, no key. Every palette it proposes comes with a /palettes/new/… link: open it, lock what you like, paste the link back.

endpointhttps://mcp.brandsweets.com/colors/mcp
claude mcp add --transport http brandsweets-colors https://mcp.brandsweets.com/colors/mcp
try this prompt

analyze #55636d and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/55636d-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