Color

#666c13

#666c13
hex#666c13
rgbrgb(102, 108, 19)
hslhsl(64, 70%, 25%)
oklchoklch(0.51 0.107 113.6)
Closest name: darkolivegreen (#556b2f)Relative luminance 0.136

Colors that go with #666c13

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 #666c13

Tints & shades

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

Harmonies

Complementary

Open in tool →

#19136c

#6c4613 · #3a6c13

#13666c · #6c1366

Split-complementary

Open in tool →

#133a6c · #46136c

#136c46 · #19136c · #6c133a

Contrast

#666c13 as textRatioAAAA largeAAAFix
Aaon white
5.65:1passpassfail
  • AAA: use #565b10 as the text (7.24:1)
Aaon black
3.72:1failpassfail
  • AA: use #777e16 as the text (4.78:1)
  • AAA: use #939c1c as the text (7.01:1)
  • AA: or shift the background to #e6e6e6 (4.52:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #666c13 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

#666c13 reads as vivid, dark, luxury. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #666c13
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 #666c13 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/666c13-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