Color

#3a33fa

#3a33fa
hex#3a33fa
rgbrgb(58, 51, 250)
hslhsl(242, 95%, 59%)
oklchoklch(0.495 0.276 271.6)
Closest name: Blustering Blue (#4411ff)Relative luminance 0.1017

Tints & shades

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

Harmonies

Complementary

Open in tool →

#f3fa33

#3390fa · #9d33fa

#fa3a33 · #33fa3a

Split-complementary

Open in tool →

#fa9d33 · #90fa33

#fa3390 · #f3fa33 · #33fa9d

Contrast

#3a33fa as textRatioAAAA largeAAAFix
Aaon white
6.92:1passpassfail
  • AAA: use #352efa as the text (7.19:1)
Aaon black
3.03:1failpassfail
  • AA: use #6560fb as the text (4.62:1)
  • AAA: use #8c88fc as the text (7.04:1)
  • AA: or shift the background to #d1d1d1 (4.53:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #3a33fa 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

#3a33fa reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #3a33fa
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 #3a33fa and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/3a33fa-a29cc4-df9e4e-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