Color

#427385

#427385
hex#427385
rgbrgb(66, 115, 133)
hslhsl(196, 34%, 39%)
oklchoklch(0.528 0.06 223.7)
Closest name: Calypso (#3d7188)Relative luminance 0.1511

Colors that go with #427385

Charcoal, Sienna and Amber 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 #427385

Tints & shades

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

Harmonies

Complementary

Open in tool →

#855442

#428575 · #425185

#854273 · #738542

Split-complementary

Open in tool →

#854251 · #857542

#754285 · #855442 · #518542

Contrast

#427385 as textRatioAAAA largeAAAFix
Aaon white
5.22:1passpassfail
  • AAA: use #345c6a as the text (7.28:1)
Aaon black
4.02:1failpassfail
  • AA: use #477c90 as the text (4.55:1)
  • AAA: use #659eb3 as the text (7.1:1)
  • AA: or shift the background to #f0f0f0 (4.58:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #427385 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 #427385
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 #427385 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/427385-9cb5c4-df4e6e-1f232d-e9f1ef?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