Color

#428f60

#428f60
hex#428f60
rgbrgb(66, 143, 96)
hslhsl(143, 37%, 41%)
oklchoklch(0.588 0.106 154.6)
Closest name: Illuminati Green (#419168)Relative luminance 0.2165

Colors that go with #428f60

Charcoal, Royal Blue and Copper 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 →

#8f4272

#4b8f42 · #428f86

#60428f · #8f6042

Split-complementary

Open in tool →

#86428f · #8f424b

#424b8f · #8f4272 · #8f8642

Contrast

#428f60 as textRatioAAAA largeAAAFix
Aaon white
3.94:1failpassfail
  • AA: use #3b8156 as the text (4.71:1)
  • AAA: use #2d6241 as the text (7.16:1)
  • AA: or shift the background to #171717 (4.55:1)
Aaon black
5.33:1passpassfail
  • AAA: use #4da870 as the text (7.15:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #428f60 as the background.

Brands using this color

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

mcpConnect your agent — build around #428f60
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 #428f60 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/428f60-a2beb0-c859d4-1f2d2b-eaf1e9?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