Color

#b021e4

#b021e4
hex#b021e4
rgbrgb(176, 33, 228)
hslhsl(284, 78%, 51%)
oklchoklch(0.578 0.268 314)
Closest name: Ferocious Fuchsia (#aa00cc)Relative luminance 0.1592

Tints & shades

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

Harmonies

Complementary

Open in tool →

#55e421

#4e21e4 · #e421b6

#e4b021 · #21e4b0

Split-complementary

Open in tool →

#b6e421 · #21e44e

#e44e21 · #55e421 · #21b6e4

Contrast

#b021e4 as textRatioAAAA largeAAAFix
Aaon white
5.02:1passpassfail
Aaon black
4.18:1failpassfail
  • AA: use #b633e6 as the text (4.61:1)
  • AAA: use #cd72ee as the text (7.24:1)
  • AA: or shift the background to #f5f5f5 (4.6:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #b021e4 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

#b021e4 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #b021e4
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 #b021e4 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/b021e4-bc9fc1-b1cb62-2d1f2b-ebe9f1?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