Color

#663e33

#663e33
hex#663e33
rgbrgb(102, 62, 51)
hslhsl(13, 33%, 30%)
oklchoklch(0.408 0.06 36.1)
Closest name: Brunette (#664238)Relative luminance 0.0651

Colors that go with #663e33

Teal, Copper and Crimson 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 #663e33

Tints & shades

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

Harmonies

Complementary

Open in tool →

#335b66

#663342 · #665733

#33663e · #3e3366

Split-complementary

Open in tool →

#336657 · #334266

#426633 · #335b66 · #573366

Contrast

#663e33 as textRatioAAAA largeAAAFix
Aaon white
9.12:1passpasspassPasses AAA — no fix needed.
Aaon black
2.3:1failfailfail
  • AA: use #a36452 as the text (4.5:1)
  • AAA: use #bc897b as the text (7:1)
  • AA: or shift the background to #b8b8b8 (4.6:1)
  • AAA: or shift the background to #e3e3e3 (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 #663e33 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

#663e33 reads as warm, muted, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #663e33
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 #663e33 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/663e33-c4a99c-62cbaf-2d281f-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