Color

#66904c

#66904c
hex#66904c
rgbrgb(102, 144, 76)
hslhsl(97, 31%, 43%)
oklchoklch(0.606 0.107 134.5)
Closest name: Hidden Paradise (#5e8b3d)Relative luminance 0.2329

Colors that go with #66904c

Charcoal, Copper and Crimson 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 #66904c

Tints & shades

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

Harmonies

Complementary

Open in tool →

#764c90

#88904c · #4c9054

#4c6690 · #904c66

Split-complementary

Open in tool →

#544c90 · #904c88

#4c8890 · #764c90 · #90544c

Contrast

#66904c as textRatioAAAA largeAAAFix
Aaon white
3.71:1failpassfail
  • AA: use #5a7f43 as the text (4.61:1)
  • AAA: use #425e31 as the text (7.3:1)
  • AA: or shift the background to #1c1c1c (4.59:1)
Aaon black
5.66:1passpassfail
  • AAA: use #74a456 as the text (7.19:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #66904c 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 #66904c
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 #66904c and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/66904c-a9bea2-624edf-1f2d20-f0f1e9?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