Color

#4e63ef

#4e63ef
hex#4e63ef
rgbrgb(78, 99, 239)
hslhsl(232, 83%, 62%)
oklchoklch(0.566 0.21 271.5)
Closest name: Arcane Brew (#5260e1)Relative luminance 0.1678

Tints & shades

Every swatch is its own page — click any to analyze it.

Harmonies

Complementary

Open in tool →

#efd94e

#4eb4ef · #894eef

#ef4e63 · #63ef4e

Split-complementary

Open in tool →

#ef894e · #b4ef4e

#ef4eb4 · #efd94e · #4eef89

Contrast

#4e63ef as textRatioAAAA largeAAAFix
Aaon white
4.82:1passpassfail
  • AAA: use #243eeb as the text (7.09:1)
Aaon black
4.36:1failpassfail
  • AA: use #5267ef as the text (4.55:1)
  • AAA: use #8190f3 as the text (7.22:1)
  • AA: or shift the background to #f7f7f7 (4.5:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #4e63ef as the background.

Brands using this color

Fonts for this mood

#4e63ef reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #4e63ef
live endpoint

Point any MCP client at the shared colors endpoint and your agent gets the same engine as this page — generate_palette, check_contrast, analyze_color — read-only, no key. Every palette it proposes comes with a /palettes/new/… link: open it, lock what you like, paste the link back.

endpointhttps://mcp.brandsweets.com/colors/mcp
claude mcp add --transport http brandsweets-colors https://mcp.brandsweets.com/colors/mcp
try this prompt

analyze #4e63ef and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/4e63ef-9c9dc4-df864e-231f2d-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