Color

#12d34f

#12d34f
hex#12d34f
rgbrgb(18, 211, 79)
hslhsl(139, 84%, 45%)
oklchoklch(0.756 0.222 146.8)
Closest name: Lime Green (#32cd32)Relative luminance 0.4728

Colors that go with #12d34f

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 →

#d31296

#36d312 · #12d3b0

#4f12d3 · #d34f12

Split-complementary

Open in tool →

#b012d3 · #d31236

#1236d3 · #d31296 · #d3b012

Contrast

#12d34f as textRatioAAAA largeAAAFix
Aaon white
2.01:1failfailfail
  • AA: use #0c8833 as the text (4.58:1)
  • AAA: use #096727 as the text (7.04:1)
  • AA: or shift the background to #474747 (4.63:1)
  • AAA: or shift the background to #2b2b2b (7.05:1)
Aaon black
10.46:1passpasspassPasses 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 #12d34f 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 #12d34f
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 #12d34f and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/12d34f-a2beae-c059d4-1f2d2a-ebf1e9?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