Color

#3a736d

#3a736d
hex#3a736d
rgbrgb(58, 115, 109)
hslhsl(174, 33%, 34%)
oklchoklch(0.515 0.061 186.6)
Closest name: Green Sleeves (#39766c)Relative luminance 0.1427

Colors that go with #3a736d

Charcoal, Champagne and Cobalt 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 →

#733a40

#3a7351 · #3a5c73

#6e3a73 · #736e3a

Split-complementary

Open in tool →

#733a5c · #73513a

#513a73 · #733a40 · #5c733a

Contrast

#3a736d as textRatioAAAA largeAAAFix
Aaon white
5.45:1passpassfail
  • AAA: use #305f5a as the text (7.22:1)
Aaon black
3.85:1failpassfail
  • AA: use #41817a as the text (4.65:1)
  • AAA: use #52a39b as the text (7.07:1)
  • AA: or shift the background to #ebebeb (4.57:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #3a736d 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 #3a736d
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 #3a736d and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/3a736d-a2bebe-d459a1-1f292d-e9f1ed?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