Color

#37c378

#37c378
hex#37c378
rgbrgb(55, 195, 120)
hslhsl(148, 56%, 49%)
oklchoklch(0.726 0.161 154.9)
Closest name: Emerald Green (#50c878)Relative luminance 0.412

Colors that go with #37c378

Charcoal, Blue and Cornflower 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 →

#c33782

#3cc337 · #37c3be

#7837c3 · #c37837

Split-complementary

Open in tool →

#be37c3 · #c3373c

#373cc3 · #c33782 · #c3be37

Contrast

#37c378 as textRatioAAAA largeAAAFix
Aaon white
2.27:1failfailfail
  • AA: use #258351 as the text (4.73:1)
  • AAA: use #1c633d as the text (7.24:1)
  • AA: or shift the background to #404040 (4.56:1)
  • AAA: or shift the background to #212121 (7.08:1)
Aaon black
9.24:1passpasspassPasses 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 #37c378 as the background.

Brands using this color

mcpConnect your agent — build around #37c378
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 #37c378 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/37c378-a2beb2-d259d4-1f2d2c-eaf1e9?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