Color

#3330df

#3330df
hex#3330df
rgbrgb(51, 48, 223)
hslhsl(241, 73%, 53%)
oklchoklch(0.459 0.25 271.4)
Closest name: Lapis on Neptune (#1f22d2)Relative luminance 0.0815

Tints & shades

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

Harmonies

Complementary

Open in tool →

#dcdf30

#3084df · #8a30df

#df3330 · #30df33

Split-complementary

Open in tool →

#df8a30 · #84df30

#df3084 · #dcdf30 · #30df8a

Contrast

#3330df as textRatioAAAA largeAAAFix
Aaon white
7.99:1passpasspassPasses AAA — no fix needed.
Aaon black
2.63:1failfailfail
  • AA: use #6765e7 as the text (4.59:1)
  • AAA: use #8e8ced as the text (7.12:1)
  • AA: or shift the background to #c4c4c4 (4.58:1)
  • AAA: or shift the background to #f0f0f0 (7.01:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #3330df 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

#3330df reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #3330df
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 #3330df and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/3330df-a19cc4-df9b4e-261f2d-e9edf1?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