Color

#425ab8

#425ab8
hex#425ab8
rgbrgb(66, 90, 184)
hslhsl(228, 47%, 49%)
oklchoklch(0.5 0.151 269.5)
Closest name: Blasphemous Blue (#3356aa)Relative luminance 0.1193

Colors that go with #425ab8

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 →

#b8a042

#4294b8 · #6542b8

#b8425a · #5ab842

Split-complementary

Open in tool →

#b86542 · #94b842

#b84294 · #b8a042 · #42b865

Contrast

#425ab8 as textRatioAAAA largeAAAFix
Aaon white
6.2:1passpassfail
  • AAA: use #3d52a9 as the text (7.05:1)
Aaon black
3.39:1failpassfail
  • AA: use #5a6fc4 as the text (4.51:1)
  • AAA: use #8393d2 as the text (7.07:1)
  • AA: or shift the background to #dedede (4.61:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #425ab8 as the background.

Brands using this color

Fonts for this mood

#425ab8 reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #425ab8
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 #425ab8 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/425ab8-9c9fc4-df7c4e-231f2d-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