Color

#31e345

#31e345
hex#31e345
rgbrgb(49, 227, 69)
hslhsl(127, 76%, 54%)
oklchoklch(0.801 0.242 144.2)
Closest name: Alarming Slime (#2ce335)Relative luminance 0.5602

Colors that go with #31e345

Taupe, Violet and Charcoal 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 →

#e331ce

#75e331 · #31e39f

#4531e3 · #e34531

Split-complementary

Open in tool →

#9f31e3 · #e33175

#3175e3 · #e331ce · #e39f31

Contrast

#31e345 as textRatioAAAA largeAAAFix
Aaon white
1.72:1failfailfail
  • AA: use #128720 as the text (4.65:1)
  • AAA: use #0e6718 as the text (7.07:1)
  • AA: or shift the background to #525252 (4.54:1)
  • AAA: or shift the background to #363636 (7.02:1)
Aaon black
12.2:1passpasspassPasses 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 #31e345 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 #31e345
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 #31e345 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/31e345-a2bea8-aa4edf-1f2d27-ecf1e9?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