Color

#3c8b66

#3c8b66
hex#3c8b66
rgbrgb(60, 139, 102)
hslhsl(152, 40%, 39%)
oklchoklch(0.577 0.097 160.7)
Closest name: Illuminati Green (#419168)Relative luminance 0.2039

Colors that go with #3c8b66

Charcoal, Crimson and Medium Violet Red 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 →

#8b3c61

#3c8b3e · #3c898b

#663c8b · #8b663c

Split-complementary

Open in tool →

#8b3c89 · #8b3e3c

#3e3c8b · #8b3c61 · #898b3c

Contrast

#3c8b66 as textRatioAAAA largeAAAFix
Aaon white
4.14:1failpassfail
  • AA: use #398461 as the text (4.52:1)
  • AAA: use #296047 as the text (7.35:1)
  • AA: or shift the background to #121212 (4.53:1)
Aaon black
5.08:1passpassfail
  • AAA: use #48a87b as the text (7.16:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #3c8b66 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 #3c8b66
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 #3c8b66 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/3c8b66-a2beb4-d459ce-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