Color

#39be04

#39be04
hex#39be04
rgbrgb(57, 190, 4)
hslhsl(103, 96%, 38%)
oklchoklch(0.702 0.226 140.2)
Closest name: Crude Banana (#21c40e)Relative luminance 0.3771

Tints & shades

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

Harmonies

Complementary

Open in tool →

#8904be

#96be04 · #04be2c

#0439be · #be0439

Split-complementary

Open in tool →

#2c04be · #be0496

#0496be · #8904be · #be2c04

Contrast

#39be04 as textRatioAAAA largeAAAFix
Aaon white
2.46:1failfailfail
  • AA: use #288703 as the text (4.61:1)
  • AAA: use #1e6402 as the text (7.29:1)
  • AA: or shift the background to #3b3b3b (4.56:1)
  • AAA: or shift the background to #1a1a1a (7.08:1)
Aaon black
8.54:1passpasspassPasses 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 #39be04 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 #39be04
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 #39be04 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/39be04-a6bea2-704edf-1f2d21-eff1e9?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