Color

#339e40

#339e40
hex#339e40
rgbrgb(51, 158, 64)
hslhsl(127, 51%, 41%)
oklchoklch(0.618 0.164 145.2)
Closest name: Green Revolution (#009944)Relative luminance 0.2553

Colors that go with #339e40

Charcoal, Blue and Crimson 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 →

#9e3391

#5c9e33 · #339e75

#40339e · #9e4033

Split-complementary

Open in tool →

#75339e · #9e335c

#335c9e · #9e3391 · #9e7533

Contrast

#339e40 as textRatioAAAA largeAAAFix
Aaon white
3.44:1failpassfail
  • AA: use #2c8736 as the text (4.54:1)
  • AAA: use #206428 as the text (7.2:1)
  • AA: or shift the background to #242424 (4.51:1)
Aaon black
6.11:1passpassfail
  • AAA: use #38ad46 as the text (7.23:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #339e40 as the background.

Brands using this color

No public brand in the corpus uses this exact color yet. Extract a brand to add one.

Palettes built around it

mcpConnect your agent — build around #339e40
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 #339e40 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/339e40-a2bea8-aa4edf-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