Color

#4bbd28

#4bbd28
hex#4bbd28
rgbrgb(75, 189, 40)
hslhsl(106, 65%, 45%)
oklchoklch(0.706 0.208 139.7)
Closest name: Frog (#58bc08)Relative luminance 0.3804

Tints & shades

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

Harmonies

Complementary

Open in tool →

#9b28bd

#96bd28 · #28bd50

#284bbd · #bd284b

Split-complementary

Open in tool →

#5028bd · #bd2896

#2896bd · #9b28bd · #bd5028

Contrast

#4bbd28 as textRatioAAAA largeAAAFix
Aaon white
2.44:1failfailfail
  • AA: use #35871d as the text (4.53:1)
  • AAA: use #286515 as the text (7.09:1)
  • AA: or shift the background to #3b3b3b (4.59:1)
  • AAA: or shift the background to #1a1a1a (7.13:1)
Aaon black
8.61:1passpasspassPasses 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 #4bbd28 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 #4bbd28
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 #4bbd28 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/4bbd28-a5bea2-774edf-1f2d22-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