Color

#330dde

#330dde
hex#330dde
rgbrgb(51, 13, 222)
hslhsl(251, 89%, 46%)
oklchoklch(0.429 0.268 272.7)
Closest name: Lapis on Neptune (#1f22d2)Relative luminance 0.0627

Tints & shades

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

Harmonies

Complementary

Open in tool →

#b7de0d

#0d4fde · #9c0dde

#de330d · #0dde33

Split-complementary

Open in tool →

#de9c0d · #4fde0d

#de0d4f · #b7de0d · #0dde9c

Contrast

#330dde as textRatioAAAA largeAAAFix
Aaon white
9.32:1passpasspassPasses AAA — no fix needed.
Aaon black
2.25:1failfailfail
  • AA: use #775bf5 as the text (4.6:1)
  • AAA: use #9b87f8 as the text (7.21:1)
  • AA: or shift the background to #b5b5b5 (4.55:1)
  • AAA: or shift the background to #e0e0e0 (7.06:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #330dde 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

#330dde reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #330dde
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 #330dde and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/330dde-a89cc4-dfb34e-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