Color

#3f35fd

#3f35fd
hex#3f35fd
rgbrgb(63, 53, 253)
hslhsl(243, 98%, 60%)
oklchoklch(0.503 0.276 272.5)
Closest name: Blustering Blue (#4411ff)Relative luminance 0.1069

Tints & shades

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

Harmonies

Complementary

Open in tool →

#f3fd35

#358ffd · #a335fd

#fd3f35 · #35fd3f

Split-complementary

Open in tool →

#fda335 · #8ffd35

#fd358f · #f3fd35 · #35fda3

Contrast

#3f35fd as textRatioAAAA largeAAAFix
Aaon white
6.69:1passpassfail
  • AAA: use #352bfd as the text (7.2:1)
Aaon black
3.14:1failpassfail
  • AA: use #655dfd as the text (4.54:1)
  • AAA: use #918bfe as the text (7.33:1)
  • AA: or shift the background to #d4d4d4 (4.51:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #3f35fd 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

#3f35fd reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #3f35fd
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 #3f35fd and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/3f35fd-a39cc4-dfa04e-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