Color

#55fd3f

#55fd3f
hex#55fd3f
rgbrgb(85, 253, 63)
hslhsl(113, 98%, 62%)
oklchoklch(0.874 0.262 141.5)
Closest name: Cathode Green (#00ff55)Relative luminance 0.7254

Colors that go with #55fd3f

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 →

#e73ffd

#b4fd3f · #3ffd88

#3f55fd · #fd3f55

Split-complementary

Open in tool →

#883ffd · #fd3fb4

#3fb4fd · #e73ffd · #fd883f

Contrast

#55fd3f as textRatioAAAA largeAAAFix
Aaon white
1.35:1failfailfail
  • AA: use #118801 as the text (4.62:1)
  • AAA: use #0d6501 as the text (7.29:1)
  • AA: or shift the background to #616161 (4.57:1)
  • AAA: or shift the background to #454545 (7.08:1)
Aaon black
15.51:1passpasspassPasses 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 #55fd3f 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 #55fd3f
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 #55fd3f and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/55fd3f-a2bea2-884edf-1f2d24-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