Color

#427b76

#427b76
hex#427b76
rgbrgb(66, 123, 118)
hslhsl(175, 30%, 37%)
oklchoklch(0.542 0.061 188.2)
Closest name: Green Sleeves (#39766c)Relative luminance 0.1663

Colors that go with #427b76

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 →

#7b4247

#427b5a · #42637b

#76427b · #7b7642

Split-complementary

Open in tool →

#7b4263 · #7b5a42

#5a427b · #7b4247 · #637b42

Contrast

#427b76 as textRatioAAAA largeAAAFix
Aaon white
4.85:1passpassfail
  • AAA: use #34605c as the text (7.06:1)
Aaon black
4.33:1failpassfail
  • AA: use #447e79 as the text (4.51:1)
  • AAA: use #57a29c as the text (7.05:1)
  • AA: or shift the background to #f7f7f7 (4.53:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #427b76 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 #427b76
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 #427b76 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/427b76-a2bdbe-d4599f-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