Color

#5b25fe

#5b25fe
hex#5b25fe
rgbrgb(91, 37, 254)
hslhsl(255, 99%, 57%)
oklchoklch(0.509 0.282 281)
Closest name: Meteor Shower (#5533ff)Relative luminance 0.107

Colors that go with #5b25fe

Charcoal, Denim and Cobalt Blue 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 →

#c8fe25

#255bfe · #c825fe

#fe5b25 · #25fe5b

Split-complementary

Open in tool →

#fec825 · #5bfe25

#fe255b · #c8fe25 · #25fec8

Contrast

#5b25fe as textRatioAAAA largeAAAFix
Aaon white
6.69:1passpassfail
  • AAA: use #531bfe as the text (7.1:1)
Aaon black
3.14:1failpassfail
  • AA: use #7d52fe as the text (4.51:1)
  • AAA: use #a080fe as the text (7.01:1)
  • AA: or shift the background to #d4d4d4 (4.51:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #5b25fe as the background.

Brands using this color

Fonts for this mood

#5b25fe reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #5b25fe
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 #5b25fe and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/5b25fe-ab9cc4-dfbd4e-291f2d-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