Color

#40f28d

#40f28d
hex#40f28d
rgbrgb(64, 242, 141)
hslhsl(146, 87%, 60%)
oklchoklch(0.851 0.199 153.2)
Closest name: Emerald Ice Palace (#2af589)Relative luminance 0.6652

Colors that go with #40f28d

Violet, Charcoal and Deep Sky 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 →

#f240a5

#4cf240 · #40f2e6

#8d40f2 · #f28d40

Split-complementary

Open in tool →

#e640f2 · #f2404c

#404cf2 · #f240a5 · #f2e640

Contrast

#40f28d as textRatioAAAA largeAAAFix
Aaon white
1.47:1failfailfail
  • AA: use #09863f as the text (4.67:1)
  • AAA: use #07642f as the text (7.31:1)
  • AA: or shift the background to #5c5c5c (4.55:1)
  • AAA: or shift the background to #404040 (7.06:1)
Aaon black
14.3:1passpasspassPasses 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 #40f28d 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 #40f28d
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 #40f28d and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/40f28d-a2beb1-ce59d4-1f2d2b-eaf1e9?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