Color

#3503fc

#3503fc
hex#3503fc
rgbrgb(53, 3, 252)
hslhsl(252, 98%, 50%)
oklchoklch(0.465 0.3 271.3)
Closest name: Overdue Blue (#4400ff)Relative luminance 0.0785

Tints & shades

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

Harmonies

Complementary

Open in tool →

#cafc03

#034efc · #b103fc

#fc3503 · #03fc35

Split-complementary

Open in tool →

#fcb103 · #4efc03

#fc034e · #cafc03 · #03fcb1

Contrast

#3503fc as textRatioAAAA largeAAAFix
Aaon white
8.17:1passpasspassPasses AAA — no fix needed.
Aaon black
2.57:1failfailfail
  • AA: use #7958fd as the text (4.63:1)
  • AAA: use #9e86fe as the text (7.3:1)
  • AA: or shift the background to #c2c2c2 (4.59:1)
  • AAA: or shift the background to #f0f0f0 (7.17:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #3503fc as the background.

Brands using this color

Fonts for this mood

#3503fc reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #3503fc
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 #3503fc and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/3503fc-a99cc4-dfb64e-281f2d-e9ecf1?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