Color

#533bb5

#533bb5
hex#533bb5
rgbrgb(83, 59, 181)
hslhsl(252, 51%, 47%)
oklchoklch(0.455 0.183 285.6)
Closest name: Blurple (#5539cc)Relative luminance 0.083

Colors that go with #533bb5

Charcoal, Sea Green and Steel 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 →

#9db53b

#3b5fb5 · #903bb5

#b5533b · #3bb553

Split-complementary

Open in tool →

#b5903b · #5fb53b

#b53b5f · #9db53b · #3bb590

Contrast

#533bb5 as textRatioAAAA largeAAAFix
Aaon white
7.89:1passpasspassPasses AAA — no fix needed.
Aaon black
2.66:1failfailfail
  • AA: use #7a65cd as the text (4.57:1)
  • AAA: use #9b8bda as the text (7.1:1)
  • AA: or shift the background to #c4c4c4 (4.53:1)
  • AAA: or shift the background to #f2f2f2 (7.05:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #533bb5 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

#533bb5 reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #533bb5
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 #533bb5 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/533bb5-a99cc4-dfb64e-281f2d-e9ecf1?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