Color

#42856e

#42856e
hex#42856e
rgbrgb(66, 133, 110)
hslhsl(159, 34%, 39%)
oklchoklch(0.566 0.078 168.8)
Closest name: Emerald Whispers (#2b8478)Relative luminance 0.1906

Colors that go with #42856e

Charcoal, Medium Violet Red 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 →

#854259

#42854c · #427b85

#6e4285 · #856e42

Split-complementary

Open in tool →

#85427b · #854c42

#4c4285 · #854259 · #7b8542

Contrast

#42856e as textRatioAAAA largeAAAFix
Aaon white
4.36:1failpassfail
  • AA: use #40826b as the text (4.54:1)
  • AAA: use #2f604f as the text (7.22:1)
  • AA: or shift the background to #0a0a0a (4.54:1)
Aaon black
4.81:1passpassfail
  • AAA: use #51a487 as the text (7.01:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #42856e 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 #42856e
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 #42856e and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/42856e-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