Color

#425cb8

#425cb8
hex#425cb8
rgbrgb(66, 92, 184)
hslhsl(227, 47%, 49%)
oklchoklch(0.504 0.148 268.7)
Closest name: Blasphemous Blue (#3356aa)Relative luminance 0.1227

Colors that go with #425cb8

Charcoal, Sea Green and Amber lead the list. Each partner is a real named colour with the reason it works — a wheel relationship, a neutral that carries it, or a pairing lifted from a palette or brand system that actually shipped — and every pair opens in the palette tool.

Tints & shades

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

Harmonies

Complementary

Open in tool →

#b89e42

#4296b8 · #6442b8

#b8425c · #5cb842

Split-complementary

Open in tool →

#b86442 · #96b842

#b84296 · #b89e42 · #42b864

Contrast

#425cb8 as textRatioAAAA largeAAAFix
Aaon white
6.08:1passpassfail
  • AAA: use #3b52a5 as the text (7.15:1)
Aaon black
3.45:1failpassfail
  • AA: use #5a71c4 as the text (4.59:1)
  • AAA: use #8394d2 as the text (7.13:1)
  • AA: or shift the background to #dedede (4.52:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #425cb8 as the background.

Brands using this color

Fonts for this mood

#425cb8 reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #425cb8
live endpoint

Point any MCP client at the shared colors endpoint and your agent gets the same engine as this page — direct_palette, edit_direction, check_palette, check_contrast — read-only, no key. Every direction it proposes comes with a /colors/d/… link: open it, lock what you like, paste the link back, and the agent edits rather than re-rolls.

endpointhttps://mcp.brandsweets.com/colors/mcp
claude mcp add --transport http brandsweets-colors https://mcp.brandsweets.com/colors/mcp
try this prompt

analyze #425cb8 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/425cb8-9ca0c4-df7a4e-221f2d-e9eff1?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