Color

#12f360

#12f360
hex#12f360
rgbrgb(18, 243, 96)
hslhsl(141, 90%, 51%)
oklchoklch(0.841 0.245 147.3)
Closest name: Cathode Green (#00ff55)Relative luminance 0.6507

Colors that go with #12f360

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 →

#f312a4

#33f312 · #12f3d1

#6012f3 · #f36012

Split-complementary

Open in tool →

#d112f3 · #f31233

#1233f3 · #f312a4 · #f3d112

Contrast

#12f360 as textRatioAAAA largeAAAFix
Aaon white
1.5:1failfailfail
  • AA: use #078834 as the text (4.58:1)
  • AAA: use #056627 as the text (7.15:1)
  • AA: or shift the background to #595959 (4.67:1)
  • AAA: or shift the background to #3d3d3d (7.25:1)
Aaon black
14.01:1passpasspassPasses 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 #12f360 as the background.

Brands using this color

mcpConnect your agent — build around #12f360
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 #12f360 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/12f360-a2beaf-c459d4-1f2d2a-eaf1e9?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