Color

#28cc4c

#28cc4c
hex#28cc4c
rgbrgb(40, 204, 76)
hslhsl(133, 67%, 48%)
oklchoklch(0.74 0.213 146)
Closest name: Battletoad (#11cc55)Relative luminance 0.4416

Colors that go with #28cc4c

Blue, Charcoal and Royal Blue lead the list. Each partner is a real named colour with the reason it works — a wheel relationship, a neutral that carries it, or a pairing lifted from a palette or brand system that actually shipped — and every pair opens in the palette tool.

Tints & shades

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

Harmonies

Complementary

Open in tool →

#cc28a9

#57cc28 · #28cc9e

#4c28cc · #cc4c28

Split-complementary

Open in tool →

#9e28cc · #cc2857

#2857cc · #cc28a9 · #cc9e28

Contrast

#28cc4c as textRatioAAAA largeAAAFix
Aaon white
2.14:1failfailfail
  • AA: use #1b8833 as the text (4.55:1)
  • AAA: use #146626 as the text (7.1:1)
  • AA: or shift the background to #424242 (4.71:1)
  • AAA: or shift the background to #262626 (7.09:1)
Aaon black
9.83:1passpasspassPasses 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 #28cc4c as the background.

Brands using this color

mcpConnect your agent — build around #28cc4c
live endpoint

Point any MCP client at the shared colors endpoint and your agent gets the same engine as this page — direct_palette, edit_direction, check_palette, check_contrast — read-only, no key. Every direction it proposes comes with a /colors/d/… link: open it, lock what you like, paste the link back, and the agent edits rather than re-rolls.

endpointhttps://mcp.brandsweets.com/colors/mcp
claude mcp add --transport http brandsweets-colors https://mcp.brandsweets.com/colors/mcp
try this prompt

analyze #28cc4c and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/28cc4c-a2beab-b84edf-1f2d28-ebf1e9?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