Color

#28eb59

#28eb59
hex#28eb59
rgbrgb(40, 235, 89)
hslhsl(135, 83%, 54%)
oklchoklch(0.822 0.239 146.3)
Closest name: Alarming Slime (#2ce335)Relative luminance 0.6059

Colors that go with #28eb59

Royal Blue, Taupe and Violet 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 →

#eb28ba

#59eb28 · #28ebba

#5928eb · #eb5928

Split-complementary

Open in tool →

#ba28eb · #eb2859

#2859eb · #eb28ba · #ebba28

Contrast

#28eb59 as textRatioAAAA largeAAAFix
Aaon white
1.6:1failfailfail
  • AA: use #0d872b as the text (4.65:1)
  • AAA: use #0a6721 as the text (7.06:1)
  • AA: or shift the background to #575757 (4.51:1)
  • AAA: or shift the background to #383838 (7.32:1)
Aaon black
13.12:1passpasspassPasses 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 #28eb59 as the background.

Brands using this color

mcpConnect your agent — build around #28eb59
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 #28eb59 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/28eb59-a2beac-b759d4-1f2d29-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