Color

#3318dc

#3318dc
hex#3318dc
rgbrgb(51, 24, 220)
hslhsl(248, 80%, 48%)
oklchoklch(0.433 0.262 272.6)
Closest name: Lapis on Neptune (#1f22d2)Relative luminance 0.0652

Tints & shades

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

Harmonies

Complementary

Open in tool →

#c2dc18

#1860dc · #9518dc

#dc3318 · #18dc33

Split-complementary

Open in tool →

#dc9518 · #60dc18

#dc1860 · #c2dc18 · #18dc95

Contrast

#3318dc as textRatioAAAA largeAAAFix
Aaon white
9.11:1passpasspassPasses AAA — no fix needed.
Aaon black
2.3:1failfailfail
  • AA: use #715eed as the text (4.53:1)
  • AAA: use #9688f2 as the text (7.1:1)
  • AA: or shift the background to #b8b8b8 (4.59:1)
  • AAA: or shift the background to #e3e3e3 (7.1:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #3318dc 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

#3318dc reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #3318dc
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 #3318dc and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/3318dc-a69cc4-dfac4e-271f2d-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