Color

#43f45b

#43f45b
hex#43f45b
rgbrgb(67, 244, 91)
hslhsl(128, 89%, 61%)
oklchoklch(0.849 0.241 145)
Closest name: Cathode Green (#00ff55)Relative luminance 0.6665

Colors that go with #43f45b

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 →

#f443dc

#84f443 · #43f4b3

#5b43f4 · #f45b43

Split-complementary

Open in tool →

#b343f4 · #f44384

#4384f4 · #f443dc · #f4b343

Contrast

#43f45b as textRatioAAAA largeAAAFix
Aaon white
1.47:1failfailfail
  • AA: use #088719 as the text (4.68:1)
  • AAA: use #066513 as the text (7.3:1)
  • AA: or shift the background to #5c5c5c (4.56:1)
  • AAA: or shift the background to #404040 (7.08:1)
Aaon black
14.33:1passpasspassPasses 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 #43f45b 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 #43f45b
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 #43f45b and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/43f45b-a2bea9-ac4edf-1f2d27-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