Color

#3f8d4b

#3f8d4b
hex#3f8d4b
rgbrgb(63, 141, 75)
hslhsl(129, 38%, 40%)
oklchoklch(0.578 0.125 146.9)
Closest name: Fern (#548d44)Relative luminance 0.2061

Colors that go with #3f8d4b

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 →

#8d3f81

#5a8d3f · #3f8d72

#4b3f8d · #8d4b3f

Split-complementary

Open in tool →

#723f8d · #8d3f5a

#3f5a8d · #8d3f81 · #8d723f

Contrast

#3f8d4b as textRatioAAAA largeAAAFix
Aaon white
4.1:1failpassfail
  • AA: use #3a8245 as the text (4.71:1)
  • AAA: use #2c6334 as the text (7.14:1)
  • AA: or shift the background to #121212 (4.57:1)
Aaon black
5.12:1passpassfail
  • AAA: use #4ca95a as the text (7.13:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #3f8d4b 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 #3f8d4b
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 #3f8d4b and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/3f8d4b-a2bea9-ae4edf-1f2d27-ecf1e9?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