Color

#3dc269

#3dc269
hex#3dc269
rgbrgb(61, 194, 105)
hslhsl(140, 52%, 50%)
oklchoklch(0.722 0.171 150.4)
Closest name: Emerald Green (#50c878)Relative luminance 0.406

Colors that go with #3dc269

Charcoal, Royal Blue and Taupe 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 →

#c23d96

#53c23d · #3dc2ac

#693dc2 · #c2693d

Split-complementary

Open in tool →

#ac3dc2 · #c23d53

#3d53c2 · #c23d96 · #c2ac3d

Contrast

#3dc269 as textRatioAAAA largeAAAFix
Aaon white
2.3:1failfailfail
  • AA: use #2a8448 as the text (4.67:1)
  • AAA: use #206537 as the text (7.05:1)
  • AA: or shift the background to #404040 (4.5:1)
  • AAA: or shift the background to #1f1f1f (7.16:1)
Aaon black
9.12:1passpasspassPasses 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 #3dc269 as the background.

Brands using this color

mcpConnect your agent — build around #3dc269
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 #3dc269 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/3dc269-a2beaf-c259d4-1f2d2a-ebf1e9?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