Color

#3da40a

#3da40a
hex#3da40a
rgbrgb(61, 164, 10)
hslhsl(100, 89%, 34%)
oklchoklch(0.633 0.196 139)
Closest name: Botanical Garden (#44aa11)Relative luminance 0.2756

Colors that go with #3da40a

Blue, Dodger 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 →

#700aa4

#8aa40a · #0aa423

#0a3da4 · #a40a3d

Split-complementary

Open in tool →

#230aa4 · #a40a8a

#0a8aa4 · #700aa4 · #a4230a

Contrast

#3da40a as textRatioAAAA largeAAAFix
Aaon white
3.22:1failpassfail
  • AA: use #328708 as the text (4.56:1)
  • AAA: use #266506 as the text (7.13:1)
  • AA: or shift the background to #292929 (4.51:1)
Aaon black
6.51:1passpassfail
  • AAA: use #41ae0a as the text (7.28:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #3da40a 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 #3da40a
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 #3da40a and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/3da40a-a8bea2-694edf-1f2d21-f0f1e9?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