Color

#5b63ae

#5b63ae
hex#5b63ae
rgbrgb(91, 99, 174)
hslhsl(234, 34%, 52%)
oklchoklch(0.528 0.117 277)
Closest name: Bellflower (#5d66aa)Relative luminance 0.142

Colors that go with #5b63ae

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 →

#aea65b

#5b8dae · #7c5bae

#ae5b63 · #63ae5b

Split-complementary

Open in tool →

#ae7c5b · #8dae5b

#ae5b8d · #aea65b · #5bae7c

Contrast

#5b63ae as textRatioAAAA largeAAAFix
Aaon white
5.47:1passpassfail
  • AAA: use #4a5296 as the text (7.15:1)
Aaon black
3.84:1failpassfail
  • AA: use #6970b5 as the text (4.59:1)
  • AAA: use #8e94c7 as the text (7.21:1)
  • AA: or shift the background to #ebebeb (4.59:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #5b63ae as the background.

Brands using this color

No public brand in the corpus uses this exact color yet. Extract a brand to add one.

mcpConnect your agent — build around #5b63ae
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 #5b63ae and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/5b63ae-9d9cc4-df8a4e-241f2d-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