Color

#663000

#663000
hex#663000
rgbrgb(102, 48, 0)
hslhsl(28, 100%, 20%)
oklchoklch(0.375 0.094 53.7)
Closest name: Brown (#653700)Relative luminance 0.0494

Tints & shades

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

Harmonies

Complementary

Open in tool →

#003666

#660003 · #666300

#006630 · #300066

Split-complementary

Open in tool →

#006663 · #000366

#036600 · #003666 · #630066

Contrast

#663000 as textRatioAAAA largeAAAFix
Aaon white
10.56:1passpasspassPasses AAA — no fix needed.
Aaon black
1.99:1failfailfail
  • AA: use #bd5800 as the text (4.56:1)
  • AAA: use #f07000 as the text (7.02:1)
  • AA: or shift the background to #ababab (4.6:1)
  • AAA: or shift the background to #d4d4d4 (7.13:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #663000 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

#663000 reads as warm, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #663000
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 #663000 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/663000-c4b39c-62cbc9-2d2c1f-f1e9ea?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