Color

#424f8a

#424f8a
hex#424f8a
rgbrgb(66, 79, 138)
hslhsl(229, 35%, 40%)
oklchoklch(0.446 0.098 272.5)
Closest name: Assassin (#2d4f83)Relative luminance 0.0859

Tints & shades

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

Harmonies

Complementary

Open in tool →

#8a7d42

#42738a · #59428a

#8a424f · #4f8a42

Split-complementary

Open in tool →

#8a5942 · #738a42

#8a4273 · #8a7d42 · #428a59

Contrast

#424f8a as textRatioAAAA largeAAAFix
Aaon white
7.73:1passpasspassPasses AAA — no fix needed.
Aaon black
2.72:1failfailfail
  • AA: use #6473b4 as the text (4.65:1)
  • AAA: use #8a95c7 as the text (7.2:1)
  • AA: or shift the background to #c7c7c7 (4.57:1)
  • AAA: or shift the background to #f5f5f5 (7.09:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #424f8a 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

#424f8a reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #424f8a
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 #424f8a and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/424f8a-9c9fc4-df7e4e-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