Color

#426e7b

#426e7b
hex#426e7b
rgbrgb(66, 110, 123)
hslhsl(194, 30%, 37%)
oklchoklch(0.512 0.053 218.7)
Closest name: Calypso (#3d7188)Relative luminance 0.1374

Colors that go with #426e7b

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.

Tints & shades

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

Harmonies

Complementary

Open in tool →

#7b4f42

#427b6c · #42517b

#7b426d · #6d7b42

Split-complementary

Open in tool →

#7b4251 · #7b6c42

#6c427b · #7b4f42 · #517b42

Contrast

#426e7b as textRatioAAAA largeAAAFix
Aaon white
5.6:1passpassfail
  • AAA: use #375c67 as the text (7.27:1)
Aaon black
3.75:1failpassfail
  • AA: use #4b7c8b as the text (4.56:1)
  • AAA: use #6a9faf as the text (7.19:1)
  • AA: or shift the background to #e8e8e8 (4.57:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #426e7b 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 #426e7b
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 #426e7b and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/426e7b-9cb6c4-df4e72-1f242d-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