Color

#28af70

#28af70
hex#28af70
rgbrgb(40, 175, 112)
hslhsl(152, 63%, 42%)
oklchoklch(0.669 0.146 157.3)
Closest name: mediumseagreen (#3cb371)Relative luminance 0.3228

Colors that go with #28af70

Charcoal, Midnight 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 →

#af2867

#28af2c · #28aaaf

#7028af · #af7028

Split-complementary

Open in tool →

#af28aa · #af2c28

#2c28af · #af2867 · #aaaf28

Contrast

#28af70 as textRatioAAAA largeAAAFix
Aaon white
2.82:1failfailfail
  • AA: use #1e8555 as the text (4.62:1)
  • AAA: use #176440 as the text (7.16:1)
  • AA: or shift the background to #303030 (4.69:1)
  • AAA: or shift the background to #0a0a0a (7.03:1)
Aaon black
7.46:1passpasspassPasses 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 #28af70 as the background.

Brands using this color

mcpConnect your agent — build around #28af70
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 #28af70 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/28af70-a2beb4-d459ce-1f2d2d-e9f1ea?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