Color

#3aa699

#3aa699
hex#3aa699
rgbrgb(58, 166, 153)
hslhsl(173, 48%, 44%)
oklchoklch(0.661 0.099 183.9)
Closest name: Ambrosial Oceanside (#47ae9c)Relative luminance 0.3047

Colors that go with #3aa699

Charcoal, Copper and Midnight 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.

Real palettes that use #3aa699

Tints & shades

Every swatch is its own page — click any to analyze it.

Harmonies

Complementary

Open in tool →

#a63a47

#3aa664 · #3a7da6

#993aa6 · #a6993a

Split-complementary

Open in tool →

#a63a7d · #a6643a

#643aa6 · #a63a47 · #7da63a

Contrast

#3aa699 as textRatioAAAA largeAAAFix
Aaon white
2.96:1failfailfail
  • AA: use #2d8077 as the text (4.7:1)
  • AAA: use #22625b as the text (7.08:1)
  • AA: or shift the background to #2e2e2e (4.59:1)
  • AAA: or shift the background to #000000 (7.09:1)
Aaon black
7.09:1passpasspassPasses 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 #3aa699 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 #3aa699
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 #3aa699 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/3aa699-a2bebe-d459a3-1f292d-e9f1ec?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