Color

#3b786d

#3b786d
hex#3b786d
rgbrgb(59, 120, 109)
hslhsl(169, 34%, 35%)
oklchoklch(0.528 0.066 180.4)
Closest name: Green Sleeves (#39766c)Relative luminance 0.1547

Colors that go with #3b786d

Charcoal, Medium Violet Red and Champagne 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 #3b786d

Tints & shades

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

Harmonies

Complementary

Open in tool →

#783b46

#3b784e · #3b6478

#6c3b78 · #786c3b

Split-complementary

Open in tool →

#783b64 · #784e3b

#4e3b78 · #783b46 · #64783b

Contrast

#3b786d as textRatioAAAA largeAAAFix
Aaon white
5.13:1passpassfail
  • AAA: use #2f6057 as the text (7.16:1)
Aaon black
4.09:1failpassfail
  • AA: use #408276 as the text (4.67:1)
  • AAA: use #51a495 as the text (7.09:1)
  • AA: or shift the background to #f0f0f0 (4.5:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #3b786d 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 #3b786d
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 #3b786d and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/3b786d-a2bebc-d459ab-1f2a2d-e9f1ec?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