Color

#31ddaa

#31ddaa
hex#31ddaa
rgbrgb(49, 221, 170)
hslhsl(162, 72%, 53%)
oklchoklch(0.802 0.153 167.4)
Closest name: Aquamarine (#2ee8bb)Relative luminance 0.5527

Colors that go with #31ddaa

Charcoal, Blue and Mustard Yellow 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 →

#dd3165

#31dd53 · #31bbdd

#aa31dd · #ddaa31

Split-complementary

Open in tool →

#dd31bb · #dd5331

#5331dd · #dd3165 · #bbdd31

Contrast

#31ddaa as textRatioAAAA largeAAAFix
Aaon white
1.74:1failfailfail
  • AA: use #158463 as the text (4.65:1)
  • AAA: use #10654c as the text (7.03:1)
  • AA: or shift the background to #4f4f4f (4.7:1)
  • AAA: or shift the background to #333333 (7.25:1)
Aaon black
12.05:1passpasspassPasses 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 #31ddaa 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 #31ddaa
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 #31ddaa and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/31ddaa-a2beb9-d459b9-1f2b2d-e9f1eb?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