Color

#55fc3b

#55fc3b
hex#55fc3b
rgbrgb(85, 252, 59)
hslhsl(112, 97%, 61%)
oklchoklch(0.871 0.263 141.3)
Closest name: Cathode Green (#00ff55)Relative luminance 0.7187

Colors that go with #55fc3b

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 →

#e23bfc

#b5fc3b · #3bfc82

#3b55fc · #fc3b55

Split-complementary

Open in tool →

#823bfc · #fc3bb5

#3bb5fc · #e23bfc · #fc823b

Contrast

#55fc3b as textRatioAAAA largeAAAFix
Aaon white
1.37:1failfailfail
  • AA: use #148802 as the text (4.61:1)
  • AAA: use #0f6402 as the text (7.38:1)
  • AA: or shift the background to #616161 (4.53:1)
  • AAA: or shift the background to #454545 (7.02:1)
Aaon black
15.37:1passpasspassPasses 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 #55fc3b 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 #55fc3b
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 #55fc3b and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/55fc3b-a2bea2-864edf-1f2d23-eef1e9?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