Color

#25ef4d

#25ef4d
hex#25ef4d
rgbrgb(37, 239, 77)
hslhsl(132, 86%, 54%)
oklchoklch(0.831 0.252 145.1)
Closest name: Becquerel (#4bec13)Relative luminance 0.6266

Colors that go with #25ef4d

Violet, Deep Sky Blue and Hot Pink 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 →

#ef25c6

#61ef25 · #25efb2

#4d25ef · #ef4d25

Split-complementary

Open in tool →

#b225ef · #ef2561

#2561ef · #ef25c6 · #efb225

Contrast

#25ef4d as textRatioAAAA largeAAAFix
Aaon white
1.55:1failfailfail
  • AA: use #0a8523 as the text (4.78:1)
  • AAA: use #07641a as the text (7.38:1)
  • AA: or shift the background to #595959 (4.51:1)
  • AAA: or shift the background to #3b3b3b (7.22:1)
Aaon black
13.53:1passpasspassPasses 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 #25ef4d 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 #25ef4d
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 #25ef4d and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/25ef4d-a2beab-b64edf-1f2d28-ecf1e9?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