Color

#664d56

#664d56
hex#664d56
rgbrgb(102, 77, 86)
hslhsl(338, 14%, 35%)
oklchoklch(0.45 0.036 355.2)
Closest name: Fedora (#625665)Relative luminance 0.088

Colors that go with #664d56

Teal, Champagne and Copper 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 #664d56

Tints & shades

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

Harmonies

Complementary

Open in tool →

#4d665d

#664d62 · #66504d

#56664d · #4d5666

Split-complementary

Open in tool →

#4d6650 · #4d6266

#62664d · #4d665d · #504d66

Contrast

#664d56 as textRatioAAAA largeAAAFix
Aaon white
7.61:1passpasspassPasses AAA — no fix needed.
Aaon black
2.76:1failfailfail
  • AA: use #8e6b78 as the text (4.52:1)
  • AAA: use #a98e98 as the text (7.01:1)
  • AA: or shift the background to #c9c9c9 (4.59:1)
  • AAA: or shift the background to #f7f7f7 (7.1:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #664d56 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

#664d56 reads as warm, muted, editorial. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #664d56
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 #664d56 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/664d56-c49ca6-62cb72-2d201f-f1e9f0?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