Color

#427b67

#427b67
hex#427b67
rgbrgb(66, 123, 103)
hslhsl(159, 30%, 37%)
oklchoklch(0.538 0.069 168.9)
Closest name: Green Sleeves (#39766c)Relative luminance 0.163

Colors that go with #427b67

Charcoal, Rust and Medium Violet Red 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 #427b67

Tints & shades

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

Harmonies

Complementary

Open in tool →

#7b4256

#427b4b · #42727b

#67427b · #7b6742

Split-complementary

Open in tool →

#7b4272 · #7b4b42

#4b427b · #7b4256 · #727b42

Contrast

#427b67 as textRatioAAAA largeAAAFix
Aaon white
4.93:1passpassfail
  • AAA: use #346051 as the text (7.15:1)
Aaon black
4.26:1failpassfail
  • AA: use #46816c as the text (4.62:1)
  • AAA: use #59a68b as the text (7.25:1)
  • AA: or shift the background to #f5f5f5 (4.52:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #427b67 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 #427b67
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 #427b67 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/427b67-a2beb8-d459c0-1f2c2d-e9f1eb?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