Color

#5a42d1

#5a42d1
hex#5a42d1
rgbrgb(90, 66, 209)
hslhsl(250, 61%, 54%)
oklchoklch(0.495 0.208 283.4)
Closest name: Blurple (#5539cc)Relative luminance 0.1067

Colors that go with #5a42d1

Charcoal, Sea Green and Amber 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 →

#b9d142

#4272d1 · #a242d1

#d15a42 · #42d15a

Split-complementary

Open in tool →

#d1a242 · #72d142

#d14272 · #b9d142 · #42d1a2

Contrast

#5a42d1 as textRatioAAAA largeAAAFix
Aaon white
6.7:1passpassfail
  • AAA: use #563ed0 as the text (7.01:1)
Aaon black
3.13:1failpassfail
  • AA: use #7763d9 as the text (4.57:1)
  • AAA: use #9b8ce3 as the text (7.25:1)
  • AA: or shift the background to #d4d4d4 (4.52:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #5a42d1 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

#5a42d1 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #5a42d1
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 #5a42d1 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/5a42d1-a79cc4-dfb14e-281f2d-e9ecf1?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