Color

#4254b8

#4254b8
hex#4254b8
rgbrgb(66, 84, 184)
hslhsl(231, 47%, 49%)
oklchoklch(0.488 0.158 271.6)
Closest name: Blasphemous Blue (#3356aa)Relative luminance 0.1096

Colors that go with #4254b8

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 →

#b8a642

#428fb8 · #6b42b8

#b84254 · #54b842

Split-complementary

Open in tool →

#b86b42 · #8fb842

#b8428f · #b8a642 · #42b86b

Contrast

#4254b8 as textRatioAAAA largeAAAFix
Aaon white
6.58:1passpassfail
  • AAA: use #4050b0 as the text (7.02:1)
Aaon black
3.19:1failpassfail
  • AA: use #6271c6 as the text (4.7:1)
  • AAA: use #8793d4 as the text (7.15:1)
  • AA: or shift the background to #d6d6d6 (4.53:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #4254b8 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

#4254b8 reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #4254b8
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 #4254b8 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/4254b8-9c9ec4-df834e-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