Color

#5729ff

#5729ff
hex#5729ff
rgbrgb(87, 41, 255)
hslhsl(253, 100%, 58%)
oklchoklch(0.51 0.281 279.5)
Closest name: Meteor Shower (#5533ff)Relative luminance 0.1083

Tints & shades

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

Harmonies

Complementary

Open in tool →

#d1ff29

#2965ff · #c229ff

#ff5729 · #29ff57

Split-complementary

Open in tool →

#ffc229 · #65ff29

#ff2965 · #d1ff29 · #29ffc2

Contrast

#5729ff as textRatioAAAA largeAAAFix
Aaon white
6.63:1passpassfail
  • AAA: use #4f1fff as the text (7.06:1)
Aaon black
3.17:1failpassfail
  • AA: use #7b57ff as the text (4.65:1)
  • AAA: use #9f85ff as the text (7.27:1)
  • AA: or shift the background to #d6d6d6 (4.56:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #5729ff 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

#5729ff reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #5729ff
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 #5729ff and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/5729ff-a99cc4-dfb84e-281f2d-e9ebf1?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