Color

#28c875

#28c875
hex#28c875
rgbrgb(40, 200, 117)
hslhsl(149, 67%, 47%)
oklchoklch(0.735 0.174 154.3)
Closest name: Emerald Green (#50c878)Relative luminance 0.4304

Colors that go with #28c875

Charcoal, Blue and Mustard Yellow 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 →

#c8287b

#2ac828 · #28c8c5

#7528c8 · #c87528

Split-complementary

Open in tool →

#c528c8 · #c8282a

#282ac8 · #c8287b · #c8c528

Contrast

#28c875 as textRatioAAAA largeAAAFix
Aaon white
2.19:1failfailfail
  • AA: use #1a844d as the text (4.72:1)
  • AAA: use #14663c as the text (7.01:1)
  • AA: or shift the background to #424242 (4.6:1)
  • AAA: or shift the background to #242424 (7.1:1)
Aaon black
9.61:1passpasspassPasses 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 #28c875 as the background.

Brands using this color

mcpConnect your agent — build around #28c875
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 #28c875 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/28c875-a2beb3-d459d4-1f2d2c-e9f1e9?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