Color

#3f884f

#3f884f
hex#3f884f
rgbrgb(63, 136, 79)
hslhsl(133, 37%, 39%)
oklchoklch(0.565 0.114 148.8)
Closest name: seagreen (#2e8b57)Relative luminance 0.1923

Colors that go with #3f884f

Charcoal, Royal Blue and Copper 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 →

#883f78

#54883f · #3f8873

#4f3f88 · #884f3f

Split-complementary

Open in tool →

#733f88 · #883f54

#3f5488 · #883f78 · #88733f

Contrast

#3f884f as textRatioAAAA largeAAAFix
Aaon white
4.33:1failpassfail
  • AA: use #3d854d as the text (4.51:1)
  • AAA: use #2d6238 as the text (7.2:1)
  • AA: or shift the background to #0a0a0a (4.57:1)
Aaon black
4.85:1passpassfail
  • AAA: use #4da861 as the text (7.09:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #3f884f 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 #3f884f
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 #3f884f and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/3f884f-a2beab-b84edf-1f2d28-ebf1e9?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