Color

#3bb530

#3bb530
hex#3bb530
rgbrgb(59, 181, 48)
hslhsl(115, 58%, 45%)
oklchoklch(0.68 0.201 141.9)
Closest name: Exit Light (#55bb33)Relative luminance 0.3419

Colors that go with #3bb530

Royal Blue, Taupe and Fuchsia 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 →

#aa30b5

#7eb530 · #30b568

#303bb5 · #b5303b

Split-complementary

Open in tool →

#6830b5 · #b5307e

#307eb5 · #aa30b5 · #b56830

Contrast

#3bb530 as textRatioAAAA largeAAAFix
Aaon white
2.68:1failfailfail
  • AA: use #2b8523 as the text (4.69:1)
  • AAA: use #21651b as the text (7.14:1)
  • AA: or shift the background to #363636 (4.51:1)
  • AAA: or shift the background to #0f0f0f (7.15:1)
Aaon black
7.84:1passpasspassPasses 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 #3bb530 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 #3bb530
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 #3bb530 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/3bb530-a2bea3-8d4edf-1f2d24-eef1e9?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