Color

#3dd15d

#3dd15d
hex#3dd15d
rgbrgb(61, 209, 93)
hslhsl(133, 62%, 53%)
oklchoklch(0.759 0.201 146.9)
Closest name: Battletoad (#11cc55)Relative luminance 0.4738

Colors that go with #3dd15d

Blue, 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 →

#d13db1

#67d13d · #3dd1a7

#5d3dd1 · #d15d3d

Split-complementary

Open in tool →

#a73dd1 · #d13d67

#3d67d1 · #d13db1 · #d1a73d

Contrast

#3dd15d as textRatioAAAA largeAAAFix
Aaon white
2:1failfailfail
  • AA: use #208837 as the text (4.53:1)
  • AAA: use #176328 as the text (7.36:1)
  • AA: or shift the background to #474747 (4.64:1)
  • AAA: or shift the background to #2b2b2b (7.06:1)
Aaon black
10.48:1passpasspassPasses 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 #3dd15d as the background.

Brands using this color

mcpConnect your agent — build around #3dd15d
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 #3dd15d and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/3dd15d-a2beab-b84edf-1f2d28-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