Color

#0450dc

#0450dc
hex#0450dc
rgbrgb(4, 80, 220)
hslhsl(219, 96%, 44%)
oklchoklch(0.491 0.223 262)
Closest name: C64 Blue (#003aff)Relative luminance 0.1093

Colors that go with #0450dc

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 →

#dc9104

#04bcdc · #2504dc

#dc0450 · #50dc04

Split-complementary

Open in tool →

#dc2504 · #bcdc04

#dc04bc · #dc9104 · #04dc25

Contrast

#0450dc as textRatioAAAA largeAAAFix
Aaon white
6.59:1passpassfail
  • AAA: use #044cd2 as the text (7.07:1)
Aaon black
3.19:1failpassfail
  • AA: use #1e6bfa as the text (4.54:1)
  • AAA: use #5a93fc as the text (7.01:1)
  • AA: or shift the background to #d6d6d6 (4.53:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #0450dc as the background.

Brands using this color

Palettes built around it

Fonts for this mood

#0450dc reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #0450dc
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 #0450dc and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/0450dc-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