Color

#663d40

#663d40
hex#663d40
rgbrgb(102, 61, 64)
hslhsl(356, 25%, 32%)
oklchoklch(0.41 0.058 15.2)
Closest name: Brunette (#664238)Relative luminance 0.0653

Colors that go with #663d40

Teal, Copper and Royal Blue 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 #663d40

Tints & shades

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

Harmonies

Complementary

Open in tool →

#3d6663

#663d54 · #664f3d

#40663d · #3d4066

Split-complementary

Open in tool →

#3d664f · #3d5466

#54663d · #3d6663 · #4f3d66

Contrast

#663d40 as textRatioAAAA largeAAAFix
Aaon white
9.1:1passpasspassPasses AAA — no fix needed.
Aaon black
2.31:1failfailfail
  • AA: use #a3666a as the text (4.67:1)
  • AAA: use #ba8c8f as the text (7.24:1)
  • AA: or shift the background to #b8b8b8 (4.59:1)
  • AAA: or shift the background to #e3e3e3 (7.09:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #663d40 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

#663d40 reads as warm, muted, editorial. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #663d40
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 #663d40 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/663d40-c49e9c-62cb91-2d241f-f1e9ee?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