Color

#4b63aa

#4b63aa
hex#4b63aa
rgbrgb(75, 99, 170)
hslhsl(225, 39%, 48%)
oklchoklch(0.515 0.116 268.1)
Closest name: Bellflower (#5d66aa)Relative luminance 0.1332

Colors that go with #4b63aa

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 →

#aa924b

#4b92aa · #634baa

#aa4b63 · #63aa4b

Split-complementary

Open in tool →

#aa634b · #92aa4b

#aa4b92 · #aa924b · #4baa63

Contrast

#4b63aa as textRatioAAAA largeAAAFix
Aaon white
5.73:1passpassfail
  • AAA: use #415695 as the text (7.02:1)
Aaon black
3.66:1failpassfail
  • AA: use #5c73b7 as the text (4.59:1)
  • AAA: use #8394c9 as the text (7.04:1)
  • AA: or shift the background to #e6e6e6 (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 #4b63aa 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

#4b63aa reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #4b63aa
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 #4b63aa and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/4b63aa-9ca1c4-df754e-221f2d-e9eff1?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