Color

#28cc65

#28cc65
hex#28cc65
rgbrgb(40, 204, 101)
hslhsl(142, 67%, 48%)
oklchoklch(0.743 0.193 150)
Closest name: Battletoad (#11cc55)Relative luminance 0.4458

Colors that go with #28cc65

Charcoal, Blue 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 →

#cc2890

#3ecc28 · #28ccb7

#6528cc · #cc6528

Split-complementary

Open in tool →

#b728cc · #cc283e

#283ecc · #cc2890 · #ccb728

Contrast

#28cc65 as textRatioAAAA largeAAAFix
Aaon white
2.12:1failfailfail
  • AA: use #1b8843 as the text (4.52:1)
  • AAA: use #146632 as the text (7.06:1)
  • AA: or shift the background to #454545 (4.53:1)
  • AAA: or shift the background to #262626 (7.15:1)
Aaon black
9.92:1passpasspassPasses 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 #28cc65 as the background.

Brands using this color

mcpConnect your agent — build around #28cc65
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 #28cc65 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/28cc65-a2beaf-c659d4-1f2d2a-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