Color

#5779ea

#5779ea
hex#5779ea
rgbrgb(87, 121, 234)
hslhsl(226, 78%, 63%)
oklchoklch(0.609 0.174 268.3)
Closest name: Blue Öyster Cult (#5577ee)Relative luminance 0.2164

Tints & shades

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

Harmonies

Complementary

Open in tool →

#eac857

#57c3ea · #7e57ea

#ea5779 · #79ea57

Split-complementary

Open in tool →

#ea7e57 · #c3ea57

#ea57c3 · #eac857 · #57ea7e

Contrast

#5779ea as textRatioAAAA largeAAAFix
Aaon white
3.94:1failpassfail
  • AA: use #456be8 as the text (4.64:1)
  • AAA: use #1b47da as the text (7.09:1)
  • AA: or shift the background to #171717 (4.55:1)
Aaon black
5.33:1passpassfail
  • AAA: use #7793ee as the text (7.19:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #5779ea as the background.

Brands using this color

Fonts for this mood

#5779ea reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #5779ea
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 #5779ea and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/5779ea-9ca1c4-df774e-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