Color

#3f9775

#3f9775
hex#3f9775
rgbrgb(63, 151, 117)
hslhsl(157, 41%, 42%)
oklchoklch(0.613 0.1 165)
Closest name: Illuminati Green (#419168)Relative luminance 0.2447

Colors that go with #3f9775

Charcoal, Medium Violet Red and Chocolate 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 #3f9775

Tints & shades

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

Harmonies

Complementary

Open in tool →

#973f61

#3f9749 · #3f8d97

#753f97 · #97753f

Split-complementary

Open in tool →

#973f8d · #97493f

#493f97 · #973f61 · #8d973f

Contrast

#3f9775 as textRatioAAAA largeAAAFix
Aaon white
3.56:1failpassfail
  • AA: use #368165 as the text (4.68:1)
  • AAA: use #29614b as the text (7.23:1)
  • AA: or shift the background to #212121 (4.52:1)
Aaon black
5.89:1passpassfail
  • AAA: use #47a983 as the text (7.27:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #3f9775 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 #3f9775
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 #3f9775 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/3f9775-a2beb7-d459c4-1f2c2d-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