Color

#39e52a

#39e52a
hex#39e52a
rgbrgb(57, 229, 42)
hslhsl(115, 78%, 53%)
oklchoklch(0.805 0.255 142)
Closest name: Alarming Slime (#2ce335)Relative luminance 0.5708

Colors that go with #39e52a

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 →

#d52ae5

#97e52a · #2ae578

#2a39e5 · #e52a39

Split-complementary

Open in tool →

#782ae5 · #e52a97

#2a97e5 · #d52ae5 · #e5782a

Contrast

#39e52a as textRatioAAAA largeAAAFix
Aaon white
1.69:1failfailfail
  • AA: use #1b8811 as the text (4.59:1)
  • AAA: use #14640c as the text (7.35:1)
  • AA: or shift the background to #525252 (4.62:1)
  • AAA: or shift the background to #363636 (7.14:1)
Aaon black
12.42:1passpasspassPasses 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 #39e52a 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 #39e52a
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 #39e52a and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/39e52a-a2bea3-8d4edf-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