Color

#3f9537

#3f9537
hex#3f9537
rgbrgb(63, 149, 55)
hslhsl(115, 46%, 40%)
oklchoklch(0.596 0.155 141.9)
Closest name: Green Revolution (#009944)Relative luminance 0.2283

Colors that go with #3f9537

Charcoal, Crimson and Royal 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.

Tints & shades

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

Harmonies

Complementary

Open in tool →

#8d3795

#6e9537 · #37955e

#373f95 · #95373f

Split-complementary

Open in tool →

#5e3795 · #95376e

#376e95 · #8d3795 · #955e37

Contrast

#3f9537 as textRatioAAAA largeAAAFix
Aaon white
3.77:1failpassfail
  • AA: use #398632 as the text (4.54:1)
  • AAA: use #2a6525 as the text (7.03:1)
  • AA: or shift the background to #1c1c1c (4.52:1)
Aaon black
5.57:1passpassfail
  • AAA: use #48ab3f as the text (7.17:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #3f9537 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 #3f9537
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 #3f9537 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/3f9537-a2bea3-8d4edf-1f2d24-eef1e9?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