Color

#5550af

#5550af
hex#5550af
rgbrgb(85, 80, 175)
hslhsl(243, 37%, 50%)
oklchoklch(0.487 0.147 281.8)
Closest name: Blasphemous Blue (#3356aa)Relative luminance 0.1076

Colors that go with #5550af

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 →

#aaaf50

#507baf · #8450af

#af5550 · #50af55

Split-complementary

Open in tool →

#af8450 · #7baf50

#af507b · #aaaf50 · #50af84

Contrast

#5550af as textRatioAAAA largeAAAFix
Aaon white
6.66:1passpassfail
  • AAA: use #524da8 as the text (7.03:1)
Aaon black
3.15:1failpassfail
  • AA: use #706cbc as the text (4.56:1)
  • AAA: use #928fcc as the text (7.02:1)
  • AA: or shift the background to #d6d6d6 (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 #5550af 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

#5550af reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #5550af
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 #5550af and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/5550af-a39cc4-dfa04e-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