Color

#424b8f

#424b8f
hex#424b8f
rgbrgb(66, 75, 143)
hslhsl(233, 37%, 41%)
oklchoklch(0.44 0.111 275.2)
Closest name: Blueberry (#464196)Relative luminance 0.0817

Tints & shades

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

Harmonies

Complementary

Open in tool →

#8f8642

#42728f · #60428f

#8f424b · #4b8f42

Split-complementary

Open in tool →

#8f6042 · #728f42

#8f4272 · #8f8642 · #428f60

Contrast

#424b8f as textRatioAAAA largeAAAFix
Aaon white
7.97:1passpasspassPasses AAA — no fix needed.
Aaon black
2.63:1failfailfail
  • AA: use #656fb8 as the text (4.52:1)
  • AAA: use #8c93ca as the text (7.14:1)
  • AA: or shift the background to #c4c4c4 (4.57:1)
  • AAA: or shift the background to #f2f2f2 (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 #424b8f 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

#424b8f reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #424b8f
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 #424b8f and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/424b8f-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