Color

#40b07d

#40b07d
hex#40b07d
rgbrgb(64, 176, 125)
hslhsl(153, 47%, 47%)
oklchoklch(0.68 0.127 160.2)
Closest name: mediumseagreen (#3cb371)Relative luminance 0.3362

Colors that go with #40b07d

Charcoal, Midnight Blue and Mustard Yellow 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 →

#b04072

#40b045 · #40abb0

#7d40b0 · #b07d40

Split-complementary

Open in tool →

#b040ab · #b04540

#4540b0 · #b04072 · #abb040

Contrast

#40b07d as textRatioAAAA largeAAAFix
Aaon white
2.72:1failfailfail
  • AA: use #2f835d as the text (4.64:1)
  • AAA: use #236145 as the text (7.32:1)
  • AA: or shift the background to #333333 (4.65:1)
  • AAA: or shift the background to #0f0f0f (7.05:1)
Aaon black
7.72:1passpasspassPasses AAA — no fix needed.

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #40b07d 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 #40b07d
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 #40b07d and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/40b07d-a2beb5-d459cc-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