Color

#42e12d

#42e12d
hex#42e12d
rgbrgb(66, 225, 45)
hslhsl(113, 75%, 53%)
oklchoklch(0.797 0.247 141.6)
Closest name: Alarming Slime (#2ce335)Relative luminance 0.552

Colors that go with #42e12d

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 →

#cc2de1

#9ce12d · #2de172

#2d42e1 · #e12d42

Split-complementary

Open in tool →

#722de1 · #e12d9c

#2d9ce1 · #cc2de1 · #e1722d

Contrast

#42e12d as textRatioAAAA largeAAAFix
Aaon white
1.74:1failfailfail
  • AA: use #218613 as the text (4.68:1)
  • AAA: use #19670f as the text (7.03:1)
  • AA: or shift the background to #4f4f4f (4.7:1)
  • AAA: or shift the background to #333333 (7.24:1)
Aaon black
12.04:1passpasspassPasses 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 #42e12d 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 #42e12d
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 #42e12d and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/42e12d-a2bea2-884edf-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