Color

#3628fb

#3628fb
hex#3628fb
rgbrgb(54, 40, 251)
hslhsl(244, 96%, 57%)
oklchoklch(0.483 0.285 271)
Closest name: Blustering Blue (#4411ff)Relative luminance 0.0927

Tints & shades

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

Harmonies

Complementary

Open in tool →

#edfb28

#2883fb · #9f28fb

#fb3628 · #28fb36

Split-complementary

Open in tool →

#fb9f28 · #83fb28

#fb2883 · #edfb28 · #28fb9f

Contrast

#3628fb as textRatioAAAA largeAAAFix
Aaon white
7.36:1passpasspassPasses AAA — no fix needed.
Aaon black
2.85:1failfailfail
  • AA: use #6a5ffc as the text (4.66:1)
  • AAA: use #8f87fd as the text (7.05:1)
  • AA: or shift the background to #cccccc (4.58:1)
  • AAA: or shift the background to #fafafa (7.05:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #3628fb as the background.

Brands using this color

Fonts for this mood

#3628fb reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #3628fb
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 #3628fb and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/3628fb-a39cc4-dfa24e-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