Color

#3b684b

#3b684b
hex#3b684b
rgbrgb(59, 104, 75)
hslhsl(141, 28%, 32%)
oklchoklch(0.476 0.069 154.6)
Closest name: Forest Serenade (#336644)Relative luminance 0.1134

Colors that go with #3b684b

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.

Tints & shades

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

Harmonies

Complementary

Open in tool →

#683b58

#42683b · #3b6862

#4b3b68 · #684b3b

Split-complementary

Open in tool →

#623b68 · #683b42

#3b4268 · #683b58 · #68623b

Contrast

#3b684b as textRatioAAAA largeAAAFix
Aaon white
6.43:1passpassfail
Aaon black
3.27:1failpassfail
  • AA: use #49835d as the text (4.69:1)
  • AAA: use #5fa578 as the text (7.14:1)
  • AA: or shift the background to #d9d9d9 (4.55:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #3b684b 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 #3b684b
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 #3b684b and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/3b684b-a2beaf-c459d4-1f2d2a-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