Color

#424666

#424666
hex#424666
rgbrgb(66, 70, 102)
hslhsl(233, 21%, 33%)
oklchoklch(0.405 0.054 278.2)
Closest name: Bonne Nuit (#3a4866)Relative luminance 0.065

Tints & shades

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

Harmonies

Complementary

Open in tool →

#666242

#425866 · #504266

#664247 · #476642

Split-complementary

Open in tool →

#665042 · #586642

#664258 · #666242 · #426650

Contrast

#424666 as textRatioAAAA largeAAAFix
Aaon white
9.13:1passpasspassPasses AAA — no fix needed.
Aaon black
2.3:1failfailfail
  • AA: use #6e74a0 as the text (4.67:1)
  • AAA: use #9094b6 as the text (7.1:1)
  • AA: or shift the background to #b8b8b8 (4.6:1)
  • AAA: or shift the background to #e3e3e3 (7.12:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #424666 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 #424666
live endpoint

Point any MCP client at the shared colors endpoint and your agent gets the same engine as this page — generate_palette, check_contrast, analyze_color — read-only, no key. Every palette it proposes comes with a /palettes/new/… link: open it, lock what you like, paste the link back.

endpointhttps://mcp.brandsweets.com/colors/mcp
claude mcp add --transport http brandsweets-colors https://mcp.brandsweets.com/colors/mcp
try this prompt

analyze #424666 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/424666-9c9cc4-df884e-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