Color

#3d3dff

#3d3dff
hex#3d3dff
rgbrgb(61, 61, 255)
hslhsl(240, 100%, 62%)
oklchoklch(0.514 0.273 271.5)
Closest name: Meteor Shower (#5533ff)Relative luminance 0.1155

Tints & shades

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

Harmonies

Complementary

Open in tool →

#ffff3d

#3d9eff · #9e3dff

#ff3d3d · #3dff3d

Split-complementary

Open in tool →

#ff9e3d · #9eff3d

#ff3d9e · #ffff3d · #3dff9e

Contrast

#3d3dff as textRatioAAAA largeAAAFix
Aaon white
6.34:1passpassfail
  • AAA: use #2e2eff as the text (7.12:1)
Aaon black
3.31:1failpassfail
  • AA: use #6161ff as the text (4.66:1)
  • AAA: use #8a8aff as the text (7.16:1)
  • AA: or shift the background to #dbdbdb (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 #3d3dff 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

#3d3dff reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #3d3dff
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 #3d3dff and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/3d3dff-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