Color

#3dd153

#3dd153
hex#3dd153
rgbrgb(61, 209, 83)
hslhsl(129, 62%, 53%)
oklchoklch(0.758 0.209 145.4)
Closest name: Battletoad (#11cc55)Relative luminance 0.4722

Colors that go with #3dd153

Royal Blue, Taupe and Violet 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 →

#d13dbb

#71d13d · #3dd19d

#533dd1 · #d1533d

Split-complementary

Open in tool →

#9d3dd1 · #d13d71

#3d71d1 · #d13dbb · #d19d3d

Contrast

#3dd153 as textRatioAAAA largeAAAFix
Aaon white
2.01:1failfailfail
  • AA: use #208830 as the text (4.54:1)
  • AAA: use #176323 as the text (7.38:1)
  • AA: or shift the background to #474747 (4.62:1)
  • AAA: or shift the background to #2b2b2b (7.04:1)
Aaon black
10.44:1passpasspassPasses 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 #3dd153 as the background.

Brands using this color

mcpConnect your agent — build around #3dd153
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 #3dd153 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/3dd153-a2bea9-ae4edf-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