Color

#66811d

#66811d
hex#66811d
rgbrgb(102, 129, 29)
hslhsl(76, 63%, 31%)
oklchoklch(0.563 0.127 123.9)
Closest name: Enchanted Forest (#5c821a)Relative luminance 0.1861

Colors that go with #66811d

Charcoal, Royal Blue and 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.

Tints & shades

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

Harmonies

Complementary

Open in tool →

#381d81

#816a1d · #34811d

#1d6681 · #811d66

Split-complementary

Open in tool →

#1d3481 · #6a1d81

#1d816a · #381d81 · #811d34

Contrast

#66811d as textRatioAAAA largeAAAFix
Aaon white
4.45:1failpassfail
  • AA: use #637d1c as the text (4.69:1)
  • AAA: use #4c6016 as the text (7.02:1)
  • AA: or shift the background to #080808 (4.5:1)
Aaon black
4.72:1passpassfail
  • AAA: use #81a225 as the text (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 #66811d as the background.

Brands using this color

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

mcpConnect your agent — build around #66811d
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 #66811d and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/66811d-b3bea2-4e6edf-232d1f-f1efe9?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