Color

#12dd03

#12dd03
hex#12dd03
rgbrgb(18, 221, 3)
hslhsl(116, 97%, 44%)
oklchoklch(0.779 0.263 142.3)
Closest name: Alarming Slime (#2ce335)Relative luminance 0.5185

Colors that go with #12dd03

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 →

#cf03dd

#7fdd03 · #03dd62

#0312dd · #dd0312

Split-complementary

Open in tool →

#6203dd · #dd037f

#037fdd · #cf03dd · #dd6203

Contrast

#12dd03 as textRatioAAAA largeAAAFix
Aaon white
1.85:1failfailfail
  • AA: use #0b8802 as the text (4.63:1)
  • AAA: use #086402 as the text (7.41:1)
  • AA: or shift the background to #4d4d4d (4.58:1)
  • AAA: or shift the background to #303030 (7.15:1)
Aaon black
11.37:1passpasspassPasses 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 #12dd03 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 #12dd03
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 #12dd03 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/12dd03-a2bea3-8f4edf-1f2d24-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