Color

#554f64

#554f64
hex#554f64
rgbrgb(85, 79, 100)
hslhsl(257, 12%, 35%)
oklchoklch(0.441 0.035 298)
Closest name: Freefall (#565266)Relative luminance 0.0844

Colors that go with #554f64

Cadet Blue, Copper and Medium Sea Green 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.

Real palettes that use #554f64

Tints & shades

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

Harmonies

Complementary

Open in tool →

#5e644f

#4f5364 · #5f4f64

#64554f · #4f6455

Split-complementary

Open in tool →

#645f4f · #53644f

#644f53 · #5e644f · #4f645f

Contrast

#554f64 as textRatioAAAA largeAAAFix
Aaon white
7.81:1passpasspassPasses AAA — no fix needed.
Aaon black
2.69:1failfailfail
  • AA: use #79708f as the text (4.53:1)
  • AAA: use #9992aa as the text (7.05:1)
  • AA: or shift the background to #c7c7c7 (4.62:1)
  • AAA: or shift the background to #f5f5f5 (7.16:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #554f64 as the background.

Brands using this color

No public brand in the corpus uses this exact color yet. Extract a brand to add one.

mcpConnect your agent — build around #554f64
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 #554f64 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/554f64-ac9cc4-dfc24e-291f2d-e9ebf1?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