Color

#1c54fd

#1c54fd
hex#1c54fd
rgbrgb(28, 84, 253)
hslhsl(225, 98%, 55%)
oklchoklch(0.533 0.256 264.4)
Closest name: Blue Ribbon (#0066ff)Relative luminance 0.1368

Colors that go with #1c54fd

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 →

#fdc41c

#1cc4fd · #541cfd

#fd1c54 · #54fd1c

Split-complementary

Open in tool →

#fd541c · #c4fd1c

#fd1cc4 · #fdc41c · #1cfd54

Contrast

#1c54fd as textRatioAAAA largeAAAFix
Aaon white
5.62:1passpassfail
  • AAA: use #023ef2 as the text (7.06:1)
Aaon black
3.74:1failpassfail
  • AA: use #3567fd as the text (4.51:1)
  • AAA: use #6d91fe as the text (7.13:1)
  • AA: or shift the background to #e6e6e6 (4.5:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #1c54fd as the background.

Brands using this color

Fonts for this mood

#1c54fd reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #1c54fd
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 #1c54fd and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/1c54fd-9ca1c4-df754e-221f2d-e9eff1?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