Color

#424fbd

#424fbd
hex#424fbd
rgbrgb(66, 79, 189)
hslhsl(234, 48%, 50%)
oklchoklch(0.482 0.172 273)
Closest name: Blasphemous Blue (#3356aa)Relative luminance 0.1042

Tints & shades

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

Harmonies

Complementary

Open in tool →

#bdb042

#428cbd · #7342bd

#bd424f · #4fbd42

Split-complementary

Open in tool →

#bd7342 · #8cbd42

#bd428c · #bdb042 · #42bd73

Contrast

#424fbd as textRatioAAAA largeAAAFix
Aaon white
6.81:1passpassfail
  • AAA: use #414db9 as the text (7.03:1)
Aaon black
3.08:1failpassfail
  • AA: use #646ec9 as the text (4.62:1)
  • AAA: use #8a92d6 as the text (7.16:1)
  • AA: or shift the background to #d4d4d4 (4.59:1)

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

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

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

tool url/palettes/new/424fbd-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