Color

#39ef94

#39ef94
hex#39ef94
rgbrgb(57, 239, 148)
hslhsl(150, 85%, 58%)
oklchoklch(0.843 0.191 155.6)
Closest name: Grotesque Green (#64e986)Relative luminance 0.6474

Tints & shades

Every swatch is its own page — click any to analyze it.

Harmonies

Complementary

Open in tool →

#ef3994

#39ef39 · #39efef

#9439ef · #ef9439

Split-complementary

Open in tool →

#ef39ef · #ef3939

#3939ef · #ef3994 · #efef39

Contrast

#39ef94 as textRatioAAAA largeAAAFix
Aaon white
1.51:1failfailfail
  • AA: use #0b8447 as the text (4.77:1)
  • AAA: use #086336 as the text (7.37:1)
  • AA: or shift the background to #595959 (4.65:1)
  • AAA: or shift the background to #3d3d3d (7.21:1)
Aaon black
13.95:1passpasspassPasses 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 #39ef94 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 #39ef94
live endpoint

Point any MCP client at the shared colors endpoint and your agent gets the same engine as this page — generate_palette, check_contrast, analyze_color — read-only, no key. Every palette it proposes comes with a /palettes/new/… link: open it, lock what you like, paste the link back.

endpointhttps://mcp.brandsweets.com/colors/mcp
claude mcp add --transport http brandsweets-colors https://mcp.brandsweets.com/colors/mcp
try this prompt

analyze #39ef94 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/39ef94-a2beb3-d459d2-1f2d2c-e9f1ea?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