Color

#37a445

#37a445
hex#37a445
rgbrgb(55, 164, 69)
hslhsl(128, 50%, 43%)
oklchoklch(0.636 0.166 145.4)
Closest name: Fennel Fiasco (#00aa44)Relative luminance 0.2779

Colors that go with #37a445

Charcoal, Medium Orchid 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.

Real palettes that use #37a445

Tints & shades

Every swatch is its own page — click any to analyze it.

Harmonies

Complementary

Open in tool →

#a43796

#5fa437 · #37a47c

#4537a4 · #a44537

Split-complementary

Open in tool →

#7c37a4 · #a4375f

#375fa4 · #a43796 · #a47c37

Contrast

#37a445 as textRatioAAAA largeAAAFix
Aaon white
3.2:1failpassfail
  • AA: use #2d8639 as the text (4.58:1)
  • AAA: use #21632a as the text (7.28:1)
  • AA: or shift the background to #292929 (4.54:1)
Aaon black
6.56:1passpassfail
  • AAA: use #39ac49 as the text (7.17:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #37a445 as the background.

Brands using this color

No public brand in the corpus uses this exact color yet. Extract a brand to add one.

Palettes built around it

mcpConnect your agent — build around #37a445
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 #37a445 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/37a445-a2bea9-ac4edf-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