Color

#3ab670

#3ab670
hex#3ab670
rgbrgb(58, 182, 112)
hslhsl(146, 52%, 47%)
oklchoklch(0.691 0.15 154.3)
Closest name: mediumseagreen (#3cb371)Relative luminance 0.3553

Colors that go with #3ab670

Charcoal, Mustard Yellow and Royal Blue 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 →

#b63a80

#42b63a · #3ab6ae

#703ab6 · #b6703a

Split-complementary

Open in tool →

#ae3ab6 · #b63a42

#3a42b6 · #b63a80 · #b6ae3a

Contrast

#3ab670 as textRatioAAAA largeAAAFix
Aaon white
2.59:1failfailfail
  • AA: use #2a8451 as the text (4.65:1)
  • AAA: use #20653e as the text (7.02:1)
  • AA: or shift the background to #383838 (4.53:1)
  • AAA: or shift the background to #141414 (7.11:1)
Aaon black
8.11:1passpasspassPasses 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 #3ab670 as the background.

Brands using this color

mcpConnect your agent — build around #3ab670
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 #3ab670 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/3ab670-a2beb1-ce59d4-1f2d2b-eaf1e9?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