Color

#37a442

#37a442
hex#37a442
rgbrgb(55, 164, 66)
hslhsl(126, 50%, 43%)
oklchoklch(0.635 0.169 144.8)
Closest name: Fennel Fiasco (#00aa44)Relative luminance 0.2776

Colors that go with #37a442

Charcoal, Blue and Crimson 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 →

#a4379a

#63a437 · #37a479

#4237a4 · #a44237

Split-complementary

Open in tool →

#7937a4 · #a43763

#3763a4 · #a4379a · #a47937

Contrast

#37a442 as textRatioAAAA largeAAAFix
Aaon white
3.21:1failpassfail
  • AA: use #2d8636 as the text (4.59:1)
  • AAA: use #216328 as the text (7.29:1)
  • AA: or shift the background to #292929 (4.54:1)
Aaon black
6.55:1passpassfail
  • AAA: use #39ac45 as the text (7.16:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #37a442 as the background.

Brands using this color

Palettes built around it

mcpConnect your agent — build around #37a442
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 #37a442 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/37a442-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