Color

#37f64e

#37f64e
hex#37f64e
rgbrgb(55, 246, 78)
hslhsl(127, 91%, 59%)
oklchoklch(0.851 0.255 144.3)
Closest name: Cathode Green (#00ff55)Relative luminance 0.6727

Colors that go with #37f64e

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 →

#f637df

#80f637 · #37f6ad

#4e37f6 · #f64e37

Split-complementary

Open in tool →

#ad37f6 · #f63780

#3780f6 · #f637df · #f6ad37

Contrast

#37f64e as textRatioAAAA largeAAAFix
Aaon white
1.45:1failfailfail
  • AA: use #068816 as the text (4.62:1)
  • AAA: use #056610 as the text (7.21:1)
  • AA: or shift the background to #5c5c5c (4.6:1)
  • AAA: or shift the background to #404040 (7.14:1)
Aaon black
14.45:1passpasspassPasses 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 #37f64e 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 #37f64e
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 #37f64e and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/37f64e-a2bea8-aa4edf-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