Color

#663f2e

#663f2e
hex#663f2e
rgbrgb(102, 63, 46)
hslhsl(18, 38%, 29%)
oklchoklch(0.409 0.061 44.2)
Closest name: Brunette (#664238)Relative luminance 0.0658

Tints & shades

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

Harmonies

Complementary

Open in tool →

#2e5566

#662e39 · #665b2e

#2e663f · #3f2e66

Split-complementary

Open in tool →

#2e665b · #2e3966

#39662e · #2e5566 · #5b2e66

Contrast

#663f2e as textRatioAAAA largeAAAFix
Aaon white
9.07:1passpasspassPasses AAA — no fix needed.
Aaon black
2.32:1failfailfail
  • AA: use #a5664a as the text (4.6:1)
  • AAA: use #c08972 as the text (7.06:1)
  • AA: or shift the background to #b8b8b8 (4.57:1)
  • AAA: or shift the background to #e3e3e3 (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 #663f2e 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

#663f2e reads as warm, dark, luxury. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #663f2e
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 #663f2e and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/663f2e-c4ad9c-62cbb8-2d291f-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