Color

#43fe43

#43fe43
hex#43fe43
rgbrgb(67, 254, 67)
hslhsl(120, 99%, 63%)
oklchoklch(0.873 0.267 142.9)
Closest name: Cathode Green (#00ff55)Relative luminance 0.7248

Colors that go with #43fe43

Violet, Hot Pink and Plum 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 →

#fe43fe

#a1fe43 · #43fea1

#4343fe · #fe4343

Split-complementary

Open in tool →

#a143fe · #fe43a1

#43a1fe · #fe43fe · #fea143

Contrast

#43fe43 as textRatioAAAA largeAAAFix
Aaon white
1.36:1failfailfail
  • AA: use #018901 as the text (4.59:1)
  • AAA: use #016501 as the text (7.33:1)
  • AA: or shift the background to #616161 (4.57:1)
  • AAA: or shift the background to #454545 (7.08:1)
Aaon black
15.5:1passpasspassPasses 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 #43fe43 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 #43fe43
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 #43fe43 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/43fe43-a2bea5-994edf-1f2d25-edf1e9?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