Color

#4e63b1

#4e63b1
hex#4e63b1
rgbrgb(78, 99, 177)
hslhsl(227, 39%, 50%)
oklchoklch(0.521 0.125 270.2)
Closest name: Bellflower (#5d66aa)Relative luminance 0.1372

Colors that go with #4e63b1

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 →

#b19c4e

#4e95b1 · #6a4eb1

#b14e63 · #63b14e

Split-complementary

Open in tool →

#b16a4e · #95b14e

#b14e95 · #b19c4e · #4eb16a

Contrast

#4e63b1 as textRatioAAAA largeAAAFix
Aaon white
5.61:1passpassfail
  • AAA: use #435598 as the text (7.02:1)
Aaon black
3.74:1failpassfail
  • AA: use #5f73b9 as the text (4.64:1)
  • AAA: use #8695ca as the text (7.17:1)
  • AA: or shift the background to #e8e8e8 (4.58:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #4e63b1 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

#4e63b1 reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #4e63b1
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 #4e63b1 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/4e63b1-9ca0c4-df7a4e-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