Color

#40783f

#40783f
hex#40783f
rgbrgb(64, 120, 63)
hslhsl(119, 31%, 36%)
oklchoklch(0.519 0.105 143.5)
Closest name: Cucumber Queen (#3c773c)Relative luminance 0.1488

Colors that go with #40783f

Charcoal, Royal Blue and Rust 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 →

#773f78

#5d783f · #3f785b

#3f4078 · #783f40

Split-complementary

Open in tool →

#5b3f78 · #783f5d

#3f5d78 · #773f78 · #785b3f

Contrast

#40783f as textRatioAAAA largeAAAFix
Aaon white
5.28:1passpassfail
  • AAA: use #346133 as the text (7.23:1)
Aaon black
3.98:1failpassfail
  • AA: use #468245 as the text (4.54:1)
  • AAA: use #59a758 as the text (7.09:1)
  • AA: or shift the background to #ededed (4.51:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #40783f 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 #40783f
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 #40783f and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/40783f-a2bea5-964edf-1f2d25-edf1e9?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