Color

#2def1f

#2def1f
hex#2def1f
rgbrgb(45, 239, 31)
hslhsl(116, 87%, 53%)
oklchoklch(0.829 0.271 142.2)
Closest name: Becquerel (#4bec13)Relative luminance 0.6239

Colors that go with #2def1f

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 →

#e21fef

#95ef1f · #1fef79

#1f2def · #ef1f2d

Split-complementary

Open in tool →

#791fef · #ef1f95

#1f95ef · #e21fef · #ef791f

Contrast

#2def1f as textRatioAAAA largeAAAFix
Aaon white
1.56:1failfailfail
  • AA: use #128a0a as the text (4.5:1)
  • AAA: use #0d6407 as the text (7.39:1)
  • AA: or shift the background to #575757 (4.64:1)
  • AAA: or shift the background to #3b3b3b (7.19:1)
Aaon black
13.48:1passpasspassPasses 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 #2def1f 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 #2def1f
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 #2def1f and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/2def1f-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