Color

#3f8d74

#3f8d74
hex#3f8d74
rgbrgb(63, 141, 116)
hslhsl(161, 38%, 40%)
oklchoklch(0.587 0.087 169.6)
Closest name: Illuminati Green (#419168)Relative luminance 0.2137

Colors that go with #3f8d74

Charcoal, Copper and Medium Violet Red 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 #3f8d74

Tints & shades

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

Harmonies

Complementary

Open in tool →

#8d3f58

#3f8d4d · #3f7f8d

#743f8d · #8d743f

Split-complementary

Open in tool →

#8d3f7f · #8d4d3f

#4d3f8d · #8d3f58 · #7f8d3f

Contrast

#3f8d74 as textRatioAAAA largeAAAFix
Aaon white
3.98:1failpassfail
  • AA: use #3a826b as the text (4.58:1)
  • AAA: use #2b5f4e as the text (7.37:1)
  • AA: or shift the background to #171717 (4.5:1)
Aaon black
5.27:1passpassfail
  • AAA: use #4aa589 as the text (7.03:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #3f8d74 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 #3f8d74
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 #3f8d74 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/3f8d74-a2beb8-d459bb-1f2c2d-e9f1eb?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