Color

#31e30d

#31e30d
hex#31e30d
rgbrgb(49, 227, 13)
hslhsl(110, 89%, 47%)
oklchoklch(0.798 0.263 141.5)
Closest name: Alarming Slime (#2ce335)Relative luminance 0.5562

Colors that go with #31e30d

Deep Sky Blue, Taupe and Violet 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 →

#bf0de3

#9be30d · #0de354

#0d31e3 · #e30d31

Split-complementary

Open in tool →

#540de3 · #e30d9b

#0d9be3 · #bf0de3 · #e3540d

Contrast

#31e30d as textRatioAAAA largeAAAFix
Aaon white
1.73:1failfailfail
  • AA: use #1d8708 as the text (4.64:1)
  • AAA: use #166506 as the text (7.25:1)
  • AA: or shift the background to #525252 (4.51:1)
  • AAA: or shift the background to #333333 (7.29:1)
Aaon black
12.12:1passpasspassPasses 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 #31e30d 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 #31e30d
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 #31e30d and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/31e30d-a3bea2-814edf-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