Color

#39f956

#39f956
hex#39f956
rgbrgb(57, 249, 86)
hslhsl(129, 94%, 60%)
oklchoklch(0.86 0.253 144.9)
Closest name: Cathode Green (#00ff55)Relative luminance 0.6929

Tints & shades

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

Harmonies

Complementary

Open in tool →

#f939dc

#7cf939 · #39f9b6

#5639f9 · #f95639

Split-complementary

Open in tool →

#b639f9 · #f9397c

#397cf9 · #f939dc · #f9b639

Contrast

#39f956 as textRatioAAAA largeAAAFix
Aaon white
1.41:1failfailfail
  • AA: use #048618 as the text (4.74:1)
  • AAA: use #036812 as the text (7.02:1)
  • AA: or shift the background to #5e5e5e (4.59:1)
  • AAA: or shift the background to #424242 (7.11:1)
Aaon black
14.86:1passpasspassPasses 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 #39f956 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 #39f956
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 #39f956 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/39f956-a2bea9-ae4edf-1f2d27-ecf1e9?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