Color

#427f80

#427f80
hex#427f80
rgbrgb(66, 127, 128)
hslhsl(181, 32%, 38%)
oklchoklch(0.556 0.063 196.9)
Closest name: Emerald Whispers (#2b8478)Relative luminance 0.179

Colors that go with #427f80

Charcoal, Amber and Champagne 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 →

#804342

#428062 · #426080

#80427f · #7f8042

Split-complementary

Open in tool →

#804260 · #806242

#624280 · #804342 · #608042

Contrast

#427f80 as textRatioAAAA largeAAAFix
Aaon white
4.59:1passpassfail
  • AAA: use #315d5e as the text (7.35:1)
Aaon black
4.58:1passpassfail
  • AAA: use #55a4a5 as the text (7.24:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #427f80 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 #427f80
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 #427f80 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/427f80-a2babe-d45992-1f272d-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