Color

#667651

#667651
hex#667651
rgbrgb(102, 118, 81)
hslhsl(86, 19%, 39%)
oklchoklch(0.542 0.058 127.2)
Closest name: Cactus (#5b6f55)Relative luminance 0.1638

Colors that go with #667651

Charcoal, Slate Blue and Champagne 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 #667651

Tints & shades

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

Harmonies

Complementary

Open in tool →

#615176

#767451 · #537651

#516676 · #765166

Split-complementary

Open in tool →

#515376 · #745176

#517674 · #615176 · #765153

Contrast

#667651 as textRatioAAAA largeAAAFix
Aaon white
4.91:1passpassfail
  • AAA: use #4e5b3e as the text (7.27:1)
Aaon black
4.28:1failpassfail
  • AA: use #6b7c55 as the text (4.64:1)
  • AAA: use #889c6d as the text (7.02:1)
  • AA: or shift the background to #f5f5f5 (4.51:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #667651 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

mcpConnect your agent — build around #667651
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 #667651 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/667651-afbea2-4e56df-212d1f-f1f1e9?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