Color

#645554

#645554
hex#645554
rgbrgb(100, 85, 84)
hslhsl(4, 9%, 36%)
oklchoklch(0.464 0.02 22.4)
Closest name: Bark (#5f5854)Relative luminance 0.0985

Tints & shades

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

Harmonies

Complementary

Open in tool →

#546364

#64545b · #645d54

#546455 · #555464

Split-complementary

Open in tool →

#54645d · #545b64

#5b6454 · #546364 · #5d5464

Contrast

#645554 as textRatioAAAA largeAAAFix
Aaon white
7.07:1passpasspassPasses AAA — no fix needed.
Aaon black
2.97:1failfailfail
  • AA: use #85716f as the text (4.59:1)
  • AAA: use #a59493 as the text (7.26:1)
  • AA: or shift the background to #cfcfcf (4.54:1)
  • AAA: or shift the background to #ffffff (7.07:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #645554 as the background.

Brands using this color

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

Fonts for this mood

#645554 reads as muted, minimal. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #645554
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 #645554 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/645554-c4a39c-62cb9f-2d261f-f1e9ed?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