Color

#554e51

#554e51
hex#554e51
rgbrgb(85, 78, 81)
hslhsl(334, 4%, 32%)
oklchoklch(0.432 0.01 349.7)
Closest name: All Nighter (#455454)Relative luminance 0.0797

Tints & shades

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

Harmonies

Complementary

Open in tool →

#4e5552

#554e54 · #554f4e

#51554e · #4e5155

Split-complementary

Open in tool →

#4e554f · #4e5455

#54554e · #4e5552 · #4f4e55

Contrast

#554e51 as textRatioAAAA largeAAAFix
Aaon white
8.09:1passpasspassPasses AAA — no fix needed.
Aaon black
2.59:1failfailfail
  • AA: use #7d7377 as the text (4.59:1)
  • AAA: use #9d9598 as the text (7.19:1)
  • AA: or shift the background to #c2c2c2 (4.54:1)
  • AAA: or shift the background to #f0f0f0 (7.1:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #554e51 as the background.

Brands using this color

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

Palettes built around it

Fonts for this mood

#554e51 reads as neutral, minimal. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #554e51
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 #554e51 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/554e51-a2beb0-c859d4-1f2d2b-eaf1e9?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