Color

#643f0c

#643f0c
hex#643f0c
rgbrgb(100, 63, 12)
hslhsl(35, 79%, 22%)
oklchoklch(0.402 0.081 69)
Closest name: Brown (#653700)Relative luminance 0.0629

Tints & shades

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

Harmonies

Complementary

Open in tool →

#0c3164

#64130c · #5d640c

#0c643f · #3f0c64

Split-complementary

Open in tool →

#0c5d64 · #130c64

#0c6413 · #0c3164 · #640c5d

Contrast

#643f0c as textRatioAAAA largeAAAFix
Aaon white
9.3:1passpasspassPasses AAA — no fix needed.
Aaon black
2.26:1failfailfail
  • AA: use #a46813 as the text (4.57:1)
  • AAA: use #d28519 as the text (7.11:1)
  • AA: or shift the background to #b5b5b5 (4.54:1)
  • AAA: or shift the background to #e0e0e0 (7.04:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #643f0c 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

#643f0c reads as warm, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #643f0c
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 #643f0c and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/643f0c-c4b89c-62c0cb-2d2d1f-f1eae9?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