Color

#28a90f

#28a90f
hex#28a90f
rgbrgb(40, 169, 15)
hslhsl(110, 84%, 36%)
oklchoklch(0.642 0.207 141.3)
Closest name: Always Greener Grass (#11aa00)Relative luminance 0.2886

Colors that go with #28a90f

Blue, Dodger 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 →

#8f0fa9

#76a90f · #0fa942

#0f28a9 · #a90f28

Split-complementary

Open in tool →

#420fa9 · #a90f76

#0f76a9 · #8f0fa9 · #a9420f

Contrast

#28a90f as textRatioAAAA largeAAAFix
Aaon white
3.1:1failpassfail
  • AA: use #21880c as the text (4.57:1)
  • AAA: use #196709 as the text (7.03:1)
  • AA: or shift the background to #2b2b2b (4.57:1)
Aaon black
6.77:1passpassfail
  • AAA: use #2aae0f as the text (7.16:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #28a90f as the background.

Brands using this color

mcpConnect your agent — build around #28a90f
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 #28a90f and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/28a90f-a3bea2-814edf-1f2d23-eef1e9?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