brandsweets

Color

#39ef8b

#39ef8b
hex#39ef8b
rgbrgb(57, 239, 139)
hslhsl(147, 85%, 58%)
oklchoklch(0.841 0.199 153.5)
Closest name: Emerald Ice Palace (#2af589)Relative luminance 0.6447
Vivid
Open in palette toolCheck contrast

Tints & shades

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

Harmonies

Complementary

Open in tool →
39ef8bef399d

#ef399d

Analogous

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39ef8b42ef3939efe6

#42ef39 · #39efe6

Triadic

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39ef8b8b39efef8b39

#8b39ef · #ef8b39

Split-complementary

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39ef8be639efef3942

#e639ef · #ef3942

Tetradic

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39ef8b3942efef399defe639

#3942ef · #ef399d · #efe639

Contrast

#39ef8b as textRatioAAAA largeAAAFix
Aaon white
1.51:1failfailfail
  • AA: use #0b8441 as the text (4.78:1)
  • AAA: use #086331 as the text (7.4:1)
  • AA: or shift the background to #595959 (4.63:1)
  • AAA: or shift the background to #3d3d3d (7.19:1)
Aaon black
13.89:1passpasspassPasses 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 #39ef8b as the background.

Brands using this color

mcpConnect your agent — build around #39ef8b
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 #39ef8b and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/39ef8b-a2beb2-d059d4-1f2d2c-eaf1e9?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