Color

#28cc2b

#28cc2b
hex#28cc2b
rgbrgb(40, 204, 43)
hslhsl(121, 67%, 48%)
oklchoklch(0.737 0.233 142.9)
Closest name: limegreen (#32cd32)Relative luminance 0.4381

Tints & shades

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

Harmonies

Complementary

Open in tool →

#cc28ca

#78cc28 · #28cc7d

#2b28cc · #cc2b28

Split-complementary

Open in tool →

#7d28cc · #cc2878

#2878cc · #cc28ca · #cc7d28

Contrast

#28cc2b as textRatioAAAA largeAAAFix
Aaon white
2.15:1failfailfail
  • AA: use #1b881d as the text (4.58:1)
  • AAA: use #146616 as the text (7.14:1)
  • AA: or shift the background to #424242 (4.67:1)
  • AAA: or shift the background to #262626 (7.04:1)
Aaon black
9.76:1passpasspassPasses 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 #28cc2b 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 #28cc2b
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 #28cc2b and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/28cc2b-a2bea6-9b4edf-1f2d26-edf1e9?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