Color

#37e718

#37e718
hex#37e718
rgbrgb(55, 231, 24)
hslhsl(111, 81%, 50%)
oklchoklch(0.81 0.263 141.5)
Closest name: Alarming Slime (#2ce335)Relative luminance 0.5803

Colors that go with #37e718

Deep Sky Blue, Violet and Royal Blue 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 →

#c818e7

#9ee718 · #18e761

#1837e7 · #e71837

Split-complementary

Open in tool →

#6118e7 · #e7189e

#189ee7 · #c818e7 · #e76118

Contrast

#37e718 as textRatioAAAA largeAAAFix
Aaon white
1.67:1failfailfail
  • AA: use #20860e as the text (4.69:1)
  • AAA: use #18660b as the text (7.13:1)
  • AA: or shift the background to #545454 (4.55:1)
  • AAA: or shift the background to #383838 (7.04:1)
Aaon black
12.61:1passpasspassPasses 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 #37e718 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 #37e718
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 #37e718 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/37e718-a3bea2-834edf-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