Color

#424cff

#424cff
hex#424cff
rgbrgb(66, 76, 255)
hslhsl(237, 100%, 63%)
oklchoklch(0.536 0.258 271.4)
Closest name: Meteor Shower (#5533ff)Relative luminance 0.1355

Tints & shades

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

Harmonies

Complementary

Open in tool →

#fff642

#42aaff · #9742ff

#ff424c · #4cff42

Split-complementary

Open in tool →

#ff9742 · #aaff42

#ff42aa · #fff642 · #42ff97

Contrast

#424cff as textRatioAAAA largeAAAFix
Aaon white
5.66:1passpassfail
  • AAA: use #242fff as the text (7.18:1)
Aaon black
3.71:1failpassfail
  • AA: use #5c64ff as the text (4.72:1)
  • AAA: use #858bff as the text (7.13:1)
  • AA: or shift the background to #e6e6e6 (4.54:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #424cff as the background.

Brands using this color

No public brand in the corpus uses this exact color yet. Extract a brand to add one.

Fonts for this mood

#424cff reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #424cff
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 #424cff and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/424cff-9f9cc4-df924e-251f2d-e9edf1?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