Color

#28a43a

#28a43a
hex#28a43a
rgbrgb(40, 164, 58)
hslhsl(129, 61%, 40%)
oklchoklch(0.631 0.18 145)
Closest name: Fennel Fiasco (#00aa44)Relative luminance 0.2731

Colors that go with #28a43a

Charcoal, Blue and Crimson 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 →

#a42892

#53a428 · #28a479

#3a28a4 · #a43a28

Split-complementary

Open in tool →

#7928a4 · #a42853

#2853a4 · #a42892 · #a47928

Contrast

#28a43a as textRatioAAAA largeAAAFix
Aaon white
3.25:1failpassfail
  • AA: use #218730 as the text (4.59:1)
  • AAA: use #186323 as the text (7.37:1)
  • AA: or shift the background to #262626 (4.66:1)
Aaon black
6.46:1passpassfail
  • AAA: use #2aac3d as the text (7.07:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #28a43a as the background.

Brands using this color

No public brand in the corpus uses this exact color yet. Extract a brand to add one.

Palettes built around it

mcpConnect your agent — build around #28a43a
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 #28a43a and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/28a43a-a2bea9-ae4edf-1f2d27-ecf1e9?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