Color

#3b725a

#3b725a
hex#3b725a
rgbrgb(59, 114, 90)
hslhsl(154, 32%, 34%)
oklchoklch(0.507 0.071 163.7)
Closest name: Green Sleeves (#39766c)Relative luminance 0.137

Colors that go with #3b725a

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 #3b725a

Tints & shades

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

Harmonies

Complementary

Open in tool →

#723b53

#3b723f · #3b6f72

#5a3b72 · #725a3b

Split-complementary

Open in tool →

#723b6f · #723f3b

#3f3b72 · #723b53 · #6f723b

Contrast

#3b725a as textRatioAAAA largeAAAFix
Aaon white
5.61:1passpassfail
  • AAA: use #32624d as the text (7.02:1)
Aaon black
3.74:1failpassfail
  • AA: use #428065 as the text (4.51:1)
  • AAA: use #55a582 as the text (7.09:1)
  • AA: or shift the background to #e8e8e8 (4.58:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #3b725a as the background.

Brands using this color

mcpConnect your agent — build around #3b725a
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 #3b725a and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/3b725a-a2beb5-d459ca-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