Color

#643b26

#643b26
hex#643b26
rgbrgb(100, 59, 38)
hslhsl(20, 45%, 27%)
oklchoklch(0.397 0.067 47.3)
Closest name: Brunette (#664238)Relative luminance 0.0598

Tints & shades

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

Harmonies

Complementary

Open in tool →

#264f64

#642630 · #645a26

#26643b · #3b2664

Split-complementary

Open in tool →

#26645a · #263064

#306426 · #264f64 · #5a2664

Contrast

#643b26 as textRatioAAAA largeAAAFix
Aaon white
9.57:1passpasspassPasses AAA — no fix needed.
Aaon black
2.2:1failfailfail
  • AA: use #aa6441 as the text (4.61:1)
  • AAA: use #c58767 as the text (7.04:1)
  • AA: or shift the background to #b3b3b3 (4.56:1)
  • AAA: or shift the background to #dedede (7.11:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #643b26 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

#643b26 reads as warm, dark, luxury. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #643b26
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 #643b26 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/643b26-c4ae9c-62cbbb-2d2a1f-f1e9eb?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