Color

#31aa6e

#31aa6e
hex#31aa6e
rgbrgb(49, 170, 110)
hslhsl(150, 55%, 43%)
oklchoklch(0.657 0.139 156.9)
Closest name: Cosmic Green (#30a877)Relative luminance 0.3053

Colors that go with #31aa6e

Charcoal, Blue and Crimson 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 →

#aa316e

#31aa31 · #31aaaa

#6e31aa · #aa6e31

Split-complementary

Open in tool →

#aa31aa · #aa3131

#3131aa · #aa316e · #aaaa31

Contrast

#31aa6e as textRatioAAAA largeAAAFix
Aaon white
2.96:1failfailfail
  • AA: use #278657 as the text (4.53:1)
  • AAA: use #1d6340 as the text (7.21:1)
  • AA: or shift the background to #2e2e2e (4.59:1)
  • AAA: or shift the background to #000000 (7.11:1)
Aaon black
7.11:1passpasspassPasses 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 #31aa6e as the background.

Brands using this color

No public brand in the corpus uses this exact color yet. Extract a brand to add one.

Palettes built around it

mcpConnect your agent — build around #31aa6e
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 #31aa6e and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/31aa6e-a2beb3-d459d2-1f2d2c-e9f1ea?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