Color

#554fab

#554fab
hex#554fab
rgbrgb(85, 79, 171)
hslhsl(244, 37%, 49%)
oklchoklch(0.482 0.143 282.6)
Closest name: Blasphemous Blue (#3356aa)Relative luminance 0.1046

Colors that go with #554fab

Charcoal, Amber and Blue 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 →

#a5ab4f

#4f77ab · #834fab

#ab554f · #4fab55

Split-complementary

Open in tool →

#ab834f · #77ab4f

#ab4f77 · #a5ab4f · #4fab83

Contrast

#554fab as textRatioAAAA largeAAAFix
Aaon white
6.79:1passpassfail
  • AAA: use #534da8 as the text (7.01:1)
Aaon black
3.09:1failpassfail
  • AA: use #726cbc as the text (4.59:1)
  • AAA: use #938fcc as the text (7.04:1)
  • AA: or shift the background to #d4d4d4 (4.58:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #554fab 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

#554fab reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #554fab
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 #554fab and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/554fab-a39cc4-dfa24e-261f2d-e9edf1?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