Color

#666a29

#666a29
hex#666a29
rgbrgb(102, 106, 41)
hslhsl(64, 44%, 29%)
oklchoklch(0.506 0.088 112.4)
Closest name: darkolivegreen (#556b2f)Relative luminance 0.1329

Colors that go with #666a29

Charcoal, Royal Blue and Slate 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 #666a29

Tints & shades

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

Harmonies

Complementary

Open in tool →

#2e296a

#6a4e29 · #466a29

#29666a · #6a2966

Split-complementary

Open in tool →

#29466a · #4e296a

#296a4e · #2e296a · #6a2946

Contrast

#666a29 as textRatioAAAA largeAAAFix
Aaon white
5.74:1passpassfail
  • AAA: use #585c24 as the text (7.07:1)
Aaon black
3.66:1failpassfail
  • AA: use #74792f as the text (4.52:1)
  • AAA: use #979e3d as the text (7.27:1)
  • AA: or shift the background to #e6e6e6 (4.6:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #666a29 as the background.

Brands using this color

No public brand in the corpus uses this exact color yet. Extract a brand to add one.

Palettes built around it

Fonts for this mood

#666a29 reads as dark, luxury, bold. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #666a29
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 #666a29 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/666a29-b9bea2-4e8adf-262d1f-f1eee9?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