Color

#40b07f

#40b07f
hex#40b07f
rgbrgb(64, 176, 127)
hslhsl(154, 47%, 47%)
oklchoklch(0.681 0.126 161.1)
Closest name: mediumseagreen (#3cb371)Relative luminance 0.3367

Colors that go with #40b07f

Charcoal, Blue and Cornflower 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 →

#b04070

#40b047 · #40a9b0

#7f40b0 · #b07f40

Split-complementary

Open in tool →

#b040a9 · #b04740

#4740b0 · #b04070 · #a9b040

Contrast

#40b07f as textRatioAAAA largeAAAFix
Aaon white
2.72:1failfailfail
  • AA: use #2f835f as the text (4.63:1)
  • AAA: use #236146 as the text (7.32:1)
  • AA: or shift the background to #333333 (4.65:1)
  • AAA: or shift the background to #0f0f0f (7.06:1)
Aaon black
7.73:1passpasspassPasses 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 #40b07f 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 #40b07f
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 #40b07f and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/40b07f-a2beb5-d459ca-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