Color

#37c345

#37c345
hex#37c345
rgbrgb(55, 195, 69)
hslhsl(126, 56%, 49%)
oklchoklch(0.718 0.204 144.4)
Closest name: Exit Light (#55bb33)Relative luminance 0.4027

Colors that go with #37c345

Blue, Charcoal 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 →

#c337b5

#6fc337 · #37c38b

#4537c3 · #c34537

Split-complementary

Open in tool →

#8b37c3 · #c3376f

#376fc3 · #c337b5 · #c38b37

Contrast

#37c345 as textRatioAAAA largeAAAFix
Aaon white
2.32:1failfailfail
  • AA: use #268730 as the text (4.57:1)
  • AAA: use #1c6323 as the text (7.35:1)
  • AA: or shift the background to #3d3d3d (4.68:1)
  • AAA: or shift the background to #1f1f1f (7.11:1)
Aaon black
9.05:1passpasspassPasses 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 #37c345 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 #37c345
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 #37c345 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/37c345-a2bea8-a74edf-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