Color

#428a85

#428a85
hex#428a85
rgbrgb(66, 138, 133)
hslhsl(176, 35%, 40%)
oklchoklch(0.586 0.073 189.3)
Closest name: Highlands (#449084)Relative luminance 0.2103

Colors that go with #428a85

Charcoal, Copper and Cobalt Blue 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.

Real palettes that use #428a85

Tints & shades

Every swatch is its own page — click any to analyze it.

Harmonies

Complementary

Open in tool →

#8a4247

#428a61 · #426b8a

#85428a · #8a8542

Split-complementary

Open in tool →

#8a426b · #8a6142

#61428a · #8a4247 · #6b8a42

Contrast

#428a85 as textRatioAAAA largeAAAFix
Aaon white
4.03:1failpassfail
  • AA: use #3d7f7b as the text (4.65:1)
  • AAA: use #2e605d as the text (7.12:1)
  • AA: or shift the background to #141414 (4.57:1)
Aaon black
5.21:1passpassfail
  • AAA: use #50a5a0 as the text (7.23:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #428a85 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 #428a85
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 #428a85 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/428a85-a2bdbe-d4599d-1f282d-e9f1ed?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