Color

#3304dc

#3304dc
hex#3304dc
rgbrgb(51, 4, 220)
hslhsl(253, 96%, 44%)
oklchoklch(0.424 0.269 273)
Closest name: Busty Blue (#3300cc)Relative luminance 0.0596

Tints & shades

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

Harmonies

Complementary

Open in tool →

#addc04

#0442dc · #9f04dc

#dc3304 · #04dc33

Split-complementary

Open in tool →

#dc9f04 · #42dc04

#dc0442 · #addc04 · #04dc9f

Contrast

#3304dc as textRatioAAAA largeAAAFix
Aaon white
9.58:1passpasspassPasses AAA — no fix needed.
Aaon black
2.19:1failfailfail
  • AA: use #7955fc as the text (4.52:1)
  • AAA: use #9d82fc as the text (7.03:1)
  • AA: or shift the background to #b3b3b3 (4.57:1)
  • AAA: or shift the background to #dedede (7.12:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #3304dc 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

#3304dc reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #3304dc
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 #3304dc and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/3304dc-a99cc4-dfb84e-281f2d-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