Color

#3b684e

#3b684e
hex#3b684e
rgbrgb(59, 104, 78)
hslhsl(145, 28%, 32%)
oklchoklch(0.477 0.066 157.4)
Closest name: Forest Serenade (#336644)Relative luminance 0.1138

Colors that go with #3b684e

Charcoal, Medium Violet Red and Cadet 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 #3b684e

Tints & shades

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

Harmonies

Complementary

Open in tool →

#683b55

#3f683b · #3b6865

#4e3b68 · #684e3b

Split-complementary

Open in tool →

#653b68 · #683b3f

#3b3f68 · #683b55 · #68653b

Contrast

#3b684e as textRatioAAAA largeAAAFix
Aaon white
6.41:1passpassfail
  • AAA: use #355f46 as the text (7.3:1)
Aaon black
3.28:1failpassfail
  • AA: use #498361 as the text (4.7:1)
  • AAA: use #5fa57c as the text (7.16:1)
  • AA: or shift the background to #d9d9d9 (4.54:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #3b684e 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 #3b684e
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 #3b684e and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/3b684e-a2beb1-cc59d4-1f2d2b-eaf1e9?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