Color

#0457dc

#0457dc
hex#0457dc
rgbrgb(4, 87, 220)
hslhsl(217, 96%, 44%)
oklchoklch(0.505 0.215 261)
Closest name: Denim (#1560bd)Relative luminance 0.1201

Colors that go with #0457dc

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 →

#dc8904

#04c3dc · #1e04dc

#dc0457 · #57dc04

Split-complementary

Open in tool →

#dc1e04 · #c3dc04

#dc04c3 · #dc8904 · #04dc1e

Contrast

#0457dc as textRatioAAAA largeAAAFix
Aaon white
6.17:1passpassfail
  • AAA: use #044fc8 as the text (7.1:1)
Aaon black
3.4:1failpassfail
  • AA: use #146cfa as the text (4.56:1)
  • AAA: use #5595fc as the text (7.09:1)
  • AA: or shift the background to #dedede (4.59:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #0457dc as the background.

Brands using this color

Fonts for this mood

#0457dc reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #0457dc
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 #0457dc and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/0457dc-9ca7c4-df624e-201f2d-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