Color

#42df16

#42df16
hex#42df16
rgbrgb(66, 223, 22)
hslhsl(107, 82%, 48%)
oklchoklch(0.791 0.253 140.7)
Closest name: Alarming Slime (#2ce335)Relative luminance 0.5399

Colors that go with #42df16

Deep Sky Blue, Taupe and Violet 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 →

#b316df

#a6df16 · #16df4f

#1642df · #df1642

Split-complementary

Open in tool →

#4f16df · #df16a6

#16a6df · #b316df · #df4f16

Contrast

#42df16 as textRatioAAAA largeAAAFix
Aaon white
1.78:1failfailfail
  • AA: use #28870d as the text (4.6:1)
  • AAA: use #1e660a as the text (7.09:1)
  • AA: or shift the background to #4f4f4f (4.6:1)
  • AAA: or shift the background to #333333 (7.1:1)
Aaon black
11.8:1passpasspassPasses 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 #42df16 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 #42df16
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 #42df16 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/42df16-a5bea2-7a4edf-1f2d22-eff1e9?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