Color

#40e2ac

#40e2ac
hex#40e2ac
rgbrgb(64, 226, 172)
hslhsl(160, 74%, 57%)
oklchoklch(0.817 0.153 165.9)
Closest name: Aquamarine (#2ee8bb)Relative luminance 0.5846

Colors that go with #40e2ac

Charcoal, Royal Blue and Taupe 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 →

#e24076

#40e25b · #40c7e2

#ac40e2 · #e2ac40

Split-complementary

Open in tool →

#e240c7 · #e25b40

#5b40e2 · #e24076 · #c7e240

Contrast

#40e2ac as textRatioAAAA largeAAAFix
Aaon white
1.65:1failfailfail
  • AA: use #14855f as the text (4.62:1)
  • AAA: use #0f6246 as the text (7.35:1)
  • AA: or shift the background to #545454 (4.58:1)
  • AAA: or shift the background to #383838 (7.09:1)
Aaon black
12.69:1passpasspassPasses 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 #40e2ac 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 #40e2ac
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 #40e2ac and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/40e2ac-a2beb8-d459be-1f2c2d-e9f1eb?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