Color

#3bd303

#3bd303
hex#3bd303
rgbrgb(59, 211, 3)
hslhsl(104, 97%, 42%)
oklchoklch(0.758 0.246 140.5)
Closest name: Candy Green (#33cc00)Relative luminance 0.4752

Colors that go with #3bd303

Taupe, Violet and Hot Pink 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 →

#9c03d3

#a3d303 · #03d334

#033bd3 · #d3033b

Split-complementary

Open in tool →

#3403d3 · #d303a3

#03a3d3 · #9c03d3 · #d33403

Contrast

#3bd303 as textRatioAAAA largeAAAFix
Aaon white
2:1failfailfail
  • AA: use #268802 as the text (4.56:1)
  • AAA: use #1c6402 as the text (7.31:1)
  • AA: or shift the background to #474747 (4.65:1)
  • AAA: or shift the background to #2b2b2b (7.08:1)
Aaon black
10.5:1passpasspassPasses 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 #3bd303 as the background.

Brands using this color

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

mcpConnect your agent — build around #3bd303
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 #3bd303 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/3bd303-a6bea2-724edf-1f2d22-eff1e9?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