Color

#12ea0b

#12ea0b
hex#12ea0b
rgbrgb(18, 234, 11)
hslhsl(118, 91%, 48%)
oklchoklch(0.813 0.274 142.4)
Closest name: Becquerel (#4bec13)Relative luminance 0.59

Colors that go with #12ea0b

Deep Sky Blue, 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 →

#e20bea

#82ea0b · #0bea73

#0b12ea · #ea0b12

Split-complementary

Open in tool →

#730bea · #ea0b82

#0b82ea · #e20bea · #ea730b

Contrast

#12ea0b as textRatioAAAA largeAAAFix
Aaon white
1.64:1failfailfail
  • AA: use #0b8806 as the text (4.63:1)
  • AAA: use #086605 as the text (7.21:1)
  • AA: or shift the background to #545454 (4.62:1)
  • AAA: or shift the background to #383838 (7.15:1)
Aaon black
12.8:1passpasspassPasses 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 #12ea0b 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 #12ea0b
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 #12ea0b and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/12ea0b-a2bea4-944edf-1f2d25-edf1e9?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