Color

#638866

#638866
hex#638866
rgbrgb(99, 136, 102)
hslhsl(125, 16%, 46%)
oklchoklch(0.589 0.066 146.7)
Closest name: Clouded Pine (#628468)Relative luminance 0.2122

Colors that go with #638866

Charcoal, 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 #638866

Tints & shades

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

Harmonies

Complementary

Open in tool →

#886385

#728863 · #638878

#666388 · #886663

Split-complementary

Open in tool →

#786388 · #886372

#637288 · #886385 · #887863

Contrast

#638866 as textRatioAAAA largeAAAFix
Aaon white
4:1failpassfail
  • AA: use #5c7f5f as the text (4.51:1)
  • AAA: use #455f47 as the text (7.04:1)
  • AA: or shift the background to #141414 (4.6:1)
Aaon black
5.24:1passpassfail
  • AAA: use #7a9f7d as the text (7.08:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #638866 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 #638866
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 #638866 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/638866-a2bea7-a54edf-1f2d26-ecf1e9?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