Color

#28d266

#28d266
hex#28d266
rgbrgb(40, 210, 102)
hslhsl(142, 68%, 49%)
oklchoklch(0.759 0.2 149.7)
Closest name: Battletoad (#11cc55)Relative luminance 0.475

Colors that go with #28d266

Blue, Royal Blue and Taupe 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 →

#d22894

#3fd228 · #28d2bb

#6628d2 · #d26628

Split-complementary

Open in tool →

#bb28d2 · #d2283f

#283fd2 · #d22894 · #d2bb28

Contrast

#28d266 as textRatioAAAA largeAAAFix
Aaon white
2:1failfailfail
  • AA: use #198541 as the text (4.7:1)
  • AAA: use #136330 as the text (7.36:1)
  • AA: or shift the background to #474747 (4.65:1)
  • AAA: or shift the background to #2b2b2b (7.08:1)
Aaon black
10.5:1passpasspassPasses 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 #28d266 as the background.

Brands using this color

mcpConnect your agent — build around #28d266
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 #28d266 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/28d266-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