Color

#37bd28

#37bd28
hex#37bd28
rgbrgb(55, 189, 40)
hslhsl(114, 65%, 45%)
oklchoklch(0.7 0.215 141.7)
Closest name: Frog (#58bc08)Relative luminance 0.3736

Colors that go with #37bd28

Charcoal, Royal Blue and Taupe 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 →

#ae28bd

#82bd28 · #28bd64

#2837bd · #bd2837

Split-complementary

Open in tool →

#6428bd · #bd2882

#2882bd · #ae28bd · #bd6428

Contrast

#37bd28 as textRatioAAAA largeAAAFix
Aaon white
2.48:1failfailfail
  • AA: use #27871d as the text (4.6:1)
  • AAA: use #1d6515 as the text (7.18:1)
  • AA: or shift the background to #3b3b3b (4.52:1)
  • AAA: or shift the background to #1a1a1a (7.02:1)
Aaon black
8.47:1passpasspassPasses 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 #37bd28 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 #37bd28
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 #37bd28 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/37bd28-a2bea2-8a4edf-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