Color

#424561

#424561
hex#424561
rgbrgb(66, 69, 97)
hslhsl(234, 19%, 32%)
oklchoklch(0.4 0.047 279.3)
Closest name: Bonne Nuit (#3a4866)Relative luminance 0.0628

Colors that go with #424561

Steel Blue, Teal and Blue 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 →

#615e42

#425561 · #4e4261

#614245 · #456142

Split-complementary

Open in tool →

#614e42 · #556142

#614255 · #615e42 · #42614e

Contrast

#424561 as textRatioAAAA largeAAAFix
Aaon white
9.31:1passpasspassPasses AAA — no fix needed.
Aaon black
2.26:1failfailfail
  • AA: use #6d729c as the text (4.54:1)
  • AAA: use #9295b5 as the text (7.19:1)
  • AA: or shift the background to #b5b5b5 (4.54:1)
  • AAA: or shift the background to #e0e0e0 (7.05:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #424561 as the background.

Brands using this color

mcpConnect your agent — build around #424561
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 #424561 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/424561-9d9cc4-df8a4e-241f2d-e9eef1?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