Color

#12ed2b

#12ed2b
hex#12ed2b
rgbrgb(18, 237, 43)
hslhsl(127, 86%, 50%)
oklchoklch(0.822 0.269 143.3)
Closest name: Becquerel (#4bec13)Relative luminance 0.6087

Colors that go with #12ed2b

Violet, Deep Sky Blue 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 →

#ed12d4

#66ed12 · #12ed99

#2b12ed · #ed2b12

Split-complementary

Open in tool →

#9912ed · #ed1266

#1266ed · #ed12d4 · #ed9912

Contrast

#12ed2b as textRatioAAAA largeAAAFix
Aaon white
1.59:1failfailfail
  • AA: use #0a8a19 as the text (4.5:1)
  • AAA: use #086813 as the text (7:1)
  • AA: or shift the background to #575757 (4.53:1)
  • AAA: or shift the background to #3b3b3b (7.03:1)
Aaon black
13.17:1passpasspassPasses 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 #12ed2b 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 #12ed2b
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 #12ed2b and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/12ed2b-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