Color

#3db370

#3db370
hex#3db370
rgbrgb(61, 179, 112)
hslhsl(146, 49%, 47%)
oklchoklch(0.684 0.145 154.5)
Closest name: mediumseagreen (#3cb371)Relative luminance 0.344

Colors that go with #3db370

Charcoal, Midnight Blue and Mustard Yellow 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 →

#b33d80

#45b33d · #3db3ab

#703db3 · #b3703d

Split-complementary

Open in tool →

#ab3db3 · #b33d45

#3d45b3 · #b33d80 · #b3ab3d

Contrast

#3db370 as textRatioAAAA largeAAAFix
Aaon white
2.66:1failfailfail
  • AA: use #2e8553 as the text (4.57:1)
  • AAA: use #22633e as the text (7.19:1)
  • AA: or shift the background to #363636 (4.53:1)
  • AAA: or shift the background to #121212 (7.03:1)
Aaon black
7.88:1passpasspassPasses 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 #3db370 as the background.

Brands using this color

mcpConnect your agent — build around #3db370
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 #3db370 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/3db370-a2beb1-ce59d4-1f2d2b-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