Color

#3f3fee

#3f3fee
hex#3f3fee
rgbrgb(63, 63, 238)
hslhsl(240, 84%, 59%)
oklchoklch(0.5 0.251 272.6)
Closest name: Meteor Shower (#5533ff)Relative luminance 0.1078

Tints & shades

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

Harmonies

Complementary

Open in tool →

#eeee3f

#3f96ee · #963fee

#ee3f3f · #3fee3f

Split-complementary

Open in tool →

#ee963f · #96ee3f

#ee3f96 · #eeee3f · #3fee96

Contrast

#3f3fee as textRatioAAAA largeAAAFix
Aaon white
6.65:1passpassfail
  • AAA: use #3535ed as the text (7.28:1)
Aaon black
3.16:1failpassfail
  • AA: use #6464f2 as the text (4.65:1)
  • AAA: use #8a8af5 as the text (7.03:1)
  • AA: or shift the background to #d6d6d6 (4.58:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #3f3fee 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

#3f3fee reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #3f3fee
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 #3f3fee and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/3f3fee-a19cc4-df994e-251f2d-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