Color

#666c0e

#666c0e
hex#666c0e
rgbrgb(102, 108, 14)
hslhsl(64, 77%, 24%)
oklchoklch(0.509 0.109 113.6)
Closest name: darkolivegreen (#556b2f)Relative luminance 0.1358

Colors that go with #666c0e

Charcoal, Blue Violet 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.

Real palettes that use #666c0e

Tints & shades

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

Harmonies

Complementary

Open in tool →

#140e6c

#6c430e · #376c0e

#0e666c · #6c0e66

Split-complementary

Open in tool →

#0e376c · #430e6c

#0e6c43 · #140e6c · #6c0e37

Contrast

#666c0e as textRatioAAAA largeAAAFix
Aaon white
5.65:1passpassfail
  • AAA: use #555a0c as the text (7.36:1)
Aaon black
3.72:1failpassfail
  • AA: use #737a10 as the text (4.52:1)
  • AAA: use #959e15 as the text (7.18:1)
  • AA: or shift the background to #e6e6e6 (4.53:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #666c0e 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

#666c0e reads as vivid, dark, luxury. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #666c0e
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 #666c0e and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/666c0e-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