Color

#659581

#659581
hex#659581
rgbrgb(101, 149, 129)
hslhsl(155, 19%, 49%)
oklchoklch(0.629 0.06 166.6)
Closest name: Highlands (#449084)Relative luminance 0.2585

Colors that go with #659581

Charcoal, Copper 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 #659581

Tints & shades

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

Harmonies

Complementary

Open in tool →

#956579

#659569 · #659195

#816595 · #958165

Split-complementary

Open in tool →

#956591 · #956965

#696595 · #956579 · #919565

Contrast

#659581 as textRatioAAAA largeAAAFix
Aaon white
3.4:1failpassfail
  • AA: use #577f6e as the text (4.5:1)
  • AAA: use #405e52 as the text (7.14:1)
  • AA: or shift the background to #242424 (4.56:1)
Aaon black
6.17:1passpassfail
  • AAA: use #73a08d as the text (7.14:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #659581 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 #659581
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 #659581 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/659581-a2beb6-d459c8-1f2d2d-e9f1ea?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