Color

#0455ec

#0455ec
hex#0455ec
rgbrgb(4, 85, 236)
hslhsl(219, 97%, 47%)
oklchoklch(0.515 0.237 262.1)
Closest name: Blue Ribbon (#0066ff)Relative luminance 0.1258

Colors that go with #0455ec

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 →

#ec9b04

#04c9ec · #2604ec

#ec0455 · #55ec04

Split-complementary

Open in tool →

#ec2604 · #c9ec04

#ec04c9 · #ec9b04 · #04ec26

Contrast

#0455ec as textRatioAAAA largeAAAFix
Aaon white
5.97:1passpassfail
  • AAA: use #034cd3 as the text (7.05:1)
Aaon black
3.52:1failpassfail
  • AA: use #1d6bfc as the text (4.56:1)
  • AAA: use #5e96fd as the text (7.26:1)
  • AA: or shift the background to #e0e0e0 (4.52:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #0455ec as the background.

Brands using this color

Fonts for this mood

#0455ec reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #0455ec
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 #0455ec and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/0455ec-9ca5c4-df664e-211f2d-e9f0f1?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