Color

#3048fd

#3048fd
hex#3048fd
rgbrgb(48, 72, 253)
hslhsl(233, 98%, 59%)
oklchoklch(0.52 0.264 268.2)
Closest name: C64 Blue (#003aff)Relative luminance 0.1235

Colors that go with #3048fd

Charcoal, Crimson and Amber lead the list. Each partner is a real named colour with the reason it works — a wheel relationship, a neutral that carries it, or a pairing lifted from a palette or brand system that actually shipped — and every pair opens in the palette tool.

Tints & shades

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

Harmonies

Complementary

Open in tool →

#fde530

#30aefd · #7f30fd

#fd3048 · #48fd30

Split-complementary

Open in tool →

#fd7f30 · #aefd30

#fd30ae · #fde530 · #30fd7f

Contrast

#3048fd as textRatioAAAA largeAAAFix
Aaon white
6.05:1passpassfail
  • AAA: use #1c36fd as the text (7.01:1)
Aaon black
3.47:1failpassfail
  • AA: use #4e63fd as the text (4.53:1)
  • AAA: use #818ffe as the text (7.29:1)
  • AA: or shift the background to #e0e0e0 (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 #3048fd as the background.

Brands using this color

Fonts for this mood

#3048fd reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #3048fd
live endpoint

Point any MCP client at the shared colors endpoint and your agent gets the same engine as this page — direct_palette, edit_direction, check_palette, check_contrast — read-only, no key. Every direction it proposes comes with a /colors/d/… link: open it, lock what you like, paste the link back, and the agent edits rather than re-rolls.

endpointhttps://mcp.brandsweets.com/colors/mcp
claude mcp add --transport http brandsweets-colors https://mcp.brandsweets.com/colors/mcp
try this prompt

analyze #3048fd and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/3048fd-9c9cc4-df884e-241f2d-e9eef1?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