Color

#639636

#639636
hex#639636
rgbrgb(99, 150, 54)
hslhsl(92, 47%, 40%)
oklchoklch(0.616 0.139 132.8)
Closest name: Bitter Leaf (#669841)Relative luminance 0.2473

Colors that go with #639636

Charcoal, Crimson 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.

Tints & shades

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

Harmonies

Complementary

Open in tool →

#693696

#939636 · #369639

#366396 · #963663

Split-complementary

Open in tool →

#393696 · #963693

#369396 · #693696 · #963936

Contrast

#639636 as textRatioAAAA largeAAAFix
Aaon white
3.53:1failpassfail
  • AA: use #547f2e as the text (4.72:1)
  • AAA: use #406123 as the text (7.11:1)
  • AA: or shift the background to #212121 (4.56:1)
Aaon black
5.95:1passpassfail
  • AAA: use #6da53b as the text (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 #639636 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 #639636
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 #639636 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/639636-acbea2-564edf-202d1f-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