Color

#4b63c3

#4b63c3
hex#4b63c3
rgbrgb(75, 99, 195)
hslhsl(228, 50%, 53%)
oklchoklch(0.531 0.152 270)
Closest name: God of Rain (#4466cc)Relative luminance 0.1436

Colors that go with #4b63c3

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 →

#c3ab4b

#4b9fc3 · #6f4bc3

#c34b63 · #63c34b

Split-complementary

Open in tool →

#c36f4b · #9fc34b

#c34b9f · #c3ab4b · #4bc36f

Contrast

#4b63c3 as textRatioAAAA largeAAAFix
Aaon white
5.42:1passpassfail
  • AAA: use #3950ac as the text (7.2:1)
Aaon black
3.87:1failpassfail
  • AA: use #5b70c8 as the text (4.6:1)
  • AAA: use #8192d5 as the text (7.01:1)
  • AA: or shift the background to #ebebeb (4.55:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #4b63c3 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

#4b63c3 reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #4b63c3
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 #4b63c3 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/4b63c3-9c9fc4-df7c4e-231f2d-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