Color

#5a1bf8

#5a1bf8
hex#5a1bf8
rgbrgb(90, 27, 248)
hslhsl(257, 94%, 54%)
oklchoklch(0.495 0.281 281.8)
Closest name: Electric Indigo (#6600ff)Relative luminance 0.0973

Tints & shades

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

Harmonies

Complementary

Open in tool →

#b9f81b

#1b4bf8 · #c81bf8

#f85a1b · #1bf85a

Split-complementary

Open in tool →

#f8c81b · #4bf81b

#f81b4b · #b9f81b · #1bf8c8

Contrast

#5a1bf8 as textRatioAAAA largeAAAFix
Aaon white
7.13:1passpasspassPasses AAA — no fix needed.
Aaon black
2.95:1failfailfail
  • AA: use #8152fa as the text (4.52:1)
  • AAA: use #a583fb as the text (7.24:1)
  • AA: or shift the background to #cfcfcf (4.57:1)
  • AAA: or shift the background to #ffffff (7.13:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #5a1bf8 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

#5a1bf8 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #5a1bf8
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 #5a1bf8 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/5a1bf8-ac9cc4-dfc24e-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