Color

#5b4cbd

#5b4cbd
hex#5b4cbd
rgbrgb(91, 76, 189)
hslhsl(248, 46%, 52%)
oklchoklch(0.495 0.171 284.3)
Closest name: Blurple (#5539cc)Relative luminance 0.1107

Colors that go with #5b4cbd

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 →

#aebd4c

#4c76bd · #944cbd

#bd5b4c · #4cbd5b

Split-complementary

Open in tool →

#bd944c · #76bd4c

#bd4c76 · #aebd4c · #4cbd94

Contrast

#5b4cbd as textRatioAAAA largeAAAFix
Aaon white
6.54:1passpassfail
  • AAA: use #5445ba as the text (7.15:1)
Aaon black
3.21:1failpassfail
  • AA: use #776ac8 as the text (4.68:1)
  • AAA: use #998fd6 as the text (7.25:1)
  • AA: or shift the background to #d9d9d9 (4.63:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #5b4cbd 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

#5b4cbd reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #5b4cbd
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 #5b4cbd and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/5b4cbd-a69cc4-dfac4e-271f2d-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