Color

#666b24

#666b24
hex#666b24
rgbrgb(102, 107, 36)
hslhsl(64, 50%, 28%)
oklchoklch(0.508 0.094 113.1)
Closest name: darkolivegreen (#556b2f)Relative luminance 0.1347

Colors that go with #666b24

Charcoal, Royal Blue and Blue Violet 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 #666b24

Tints & shades

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

Harmonies

Complementary

Open in tool →

#28246b

#6b4c24 · #436b24

#24666b · #6b2466

Split-complementary

Open in tool →

#24436b · #4c246b

#246b4c · #28246b · #6b2443

Contrast

#666b24 as textRatioAAAA largeAAAFix
Aaon white
5.69:1passpassfail
  • AAA: use #585c1f as the text (7.08:1)
Aaon black
3.69:1failpassfail
  • AA: use #757a29 as the text (4.57:1)
  • AAA: use #969d34 as the text (7.17:1)
  • AA: or shift the background to #e6e6e6 (4.56:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #666b24 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

#666b24 reads as dark, luxury, bold. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #666b24
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 #666b24 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/666b24-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