Color

#40a57d

#40a57d
hex#40a57d
rgbrgb(64, 165, 125)
hslhsl(156, 44%, 45%)
oklchoklch(0.652 0.112 163.9)
Closest name: Cosmic Green (#30a877)Relative luminance 0.2948

Colors that go with #40a57d

Charcoal, Crimson and Denim 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 →

#a54069

#40a54a · #409ba5

#7d40a5 · #a57d40

Split-complementary

Open in tool →

#a5409b · #a54a40

#4a40a5 · #a54069 · #9ba540

Contrast

#40a57d as textRatioAAAA largeAAAFix
Aaon white
3.05:1failpassfail
  • AA: use #338464 as the text (4.54:1)
  • AAA: use #27634b as the text (7.06:1)
  • AA: or shift the background to #2b2b2b (4.65:1)
Aaon black
6.9:1passpassfail
  • AAA: use #42a980 as the text (7.22:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #40a57d 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 #40a57d
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 #40a57d and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/40a57d-a2beb6-d459c6-1f2d2d-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