Color

#31dd13

#31dd13
hex#31dd13
rgbrgb(49, 221, 19)
hslhsl(111, 84%, 47%)
oklchoklch(0.782 0.256 141.6)
Closest name: Alarming Slime (#2ce335)Relative luminance 0.5241

Colors that go with #31dd13

Taupe, Violet and Hot Pink 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 →

#be13dd

#96dd13 · #13dd5a

#1331dd · #dd1331

Split-complementary

Open in tool →

#5a13dd · #dd1396

#1396dd · #be13dd · #dd5a13

Contrast

#31dd13 as textRatioAAAA largeAAAFix
Aaon white
1.83:1failfailfail
  • AA: use #1e880c as the text (4.58:1)
  • AAA: use #176709 as the text (7.05:1)
  • AA: or shift the background to #4d4d4d (4.62:1)
  • AAA: or shift the background to #303030 (7.22:1)
Aaon black
11.48:1passpasspassPasses 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 #31dd13 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 #31dd13
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 #31dd13 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/31dd13-a3bea2-834edf-1f2d23-eef1e9?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