Color

#12e23f

#12e23f
hex#12e23f
rgbrgb(18, 226, 63)
hslhsl(133, 85%, 48%)
oklchoklch(0.794 0.249 144.7)
Closest name: Alarming Slime (#2ce335)Relative luminance 0.5488

Colors that go with #12e23f

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 →

#e212b5

#4de212 · #12e2a7

#3f12e2 · #e23f12

Split-complementary

Open in tool →

#a712e2 · #e2124d

#124de2 · #e212b5 · #e2a712

Contrast

#12e23f as textRatioAAAA largeAAAFix
Aaon white
1.75:1failfailfail
  • AA: use #0b8926 as the text (4.54:1)
  • AAA: use #08631c as the text (7.47:1)
  • AA: or shift the background to #4f4f4f (4.67:1)
  • AAA: or shift the background to #333333 (7.21:1)
Aaon black
11.98:1passpasspassPasses 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 #12e23f 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 #12e23f
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 #12e23f and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/12e23f-a2beab-b84edf-1f2d28-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