Color

#3f887d

#3f887d
hex#3f887d
rgbrgb(63, 136, 125)
hslhsl(171, 37%, 39%)
oklchoklch(0.577 0.075 182.4)
Closest name: Emerald Whispers (#2b8478)Relative luminance 0.2015

Colors that go with #3f887d

Charcoal, Copper 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.

Real palettes that use #3f887d

Tints & shades

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

Harmonies

Complementary

Open in tool →

#883f4a

#3f8858 · #3f6e88

#7d3f88 · #887d3f

Split-complementary

Open in tool →

#883f6e · #88583f

#583f88 · #883f4a · #6e883f

Contrast

#3f887d as textRatioAAAA largeAAAFix
Aaon white
4.18:1failpassfail
  • AA: use #3b8177 as the text (4.57:1)
  • AAA: use #2b5e57 as the text (7.39:1)
  • AA: or shift the background to #0f0f0f (4.59:1)
Aaon black
5.03:1passpassfail
  • AAA: use #4ca497 as the text (7.06:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #3f887d 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 #3f887d
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 #3f887d and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/3f887d-a2bebd-d459a7-1f292d-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