Color

#28a445

#28a445
hex#28a445
rgbrgb(40, 164, 69)
hslhsl(134, 61%, 40%)
oklchoklch(0.632 0.171 146.9)
Closest name: Fennel Fiasco (#00aa44)Relative luminance 0.2743

Colors that go with #28a445

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 →

#a42887

#49a428 · #28a483

#4528a4 · #a44528

Split-complementary

Open in tool →

#8328a4 · #a42849

#2849a4 · #a42887 · #a48328

Contrast

#28a445 as textRatioAAAA largeAAAFix
Aaon white
3.24:1failpassfail
  • AA: use #218739 as the text (4.58:1)
  • AAA: use #186329 as the text (7.35:1)
  • AA: or shift the background to #262626 (4.67:1)
Aaon black
6.49:1passpassfail
  • AAA: use #2aac48 as the text (7.09:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #28a445 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 #28a445
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 #28a445 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/28a445-a2beac-b559d4-1f2d29-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