Color

#424fa9

#424fa9
hex#424fa9
rgbrgb(66, 79, 169)
hslhsl(232, 44%, 46%)
oklchoklch(0.467 0.144 273.3)
Closest name: Blasphemous Blue (#3356aa)Relative luminance 0.0961

Tints & shades

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

Harmonies

Complementary

Open in tool →

#a99b42

#4283a9 · #6842a9

#a9424f · #4fa942

Split-complementary

Open in tool →

#a96842 · #83a942

#a94283 · #a99b42 · #42a968

Contrast

#424fa9 as textRatioAAAA largeAAAFix
Aaon white
7.18:1passpasspassPasses AAA — no fix needed.
Aaon black
2.92:1failfailfail
  • AA: use #616ec2 as the text (4.52:1)
  • AAA: use #8993d1 as the text (7.16:1)
  • AA: or shift the background to #cfcfcf (4.61:1)
  • AAA: or shift the background to #fcfcfc (7:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #424fa9 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

#424fa9 reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #424fa9
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 #424fa9 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/424fa9-9c9dc4-df864e-231f2d-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