Color

#4e73e4

#4e73e4
hex#4e73e4
rgbrgb(78, 115, 228)
hslhsl(225, 74%, 60%)
oklchoklch(0.588 0.176 267.2)
Closest name: Blue Öyster Cult (#5577ee)Relative luminance 0.1948

Tints & shades

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

Harmonies

Complementary

Open in tool →

#e4bf4e

#4ebfe4 · #734ee4

#e44e73 · #73e44e

Split-complementary

Open in tool →

#e4734e · #bfe44e

#e44ebf · #e4bf4e · #4ee473

Contrast

#4e73e4 as textRatioAAAA largeAAAFix
Aaon white
4.29:1failpassfail
  • AA: use #456ce3 as the text (4.66:1)
  • AAA: use #1e4acc as the text (7.22:1)
  • AA: or shift the background to #0d0d0d (4.53:1)
Aaon black
4.9:1passpassfail
  • AAA: use #7593ea as the text (7.12:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #4e73e4 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

#4e73e4 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #4e73e4
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 #4e73e4 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/4e73e4-9ca1c4-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