Color

#0d4dfd

#0d4dfd
hex#0d4dfd
rgbrgb(13, 77, 253)
hslhsl(224, 98%, 52%)
oklchoklch(0.52 0.265 263.8)
Closest name: C64 Blue (#003aff)Relative luminance 0.1249

Colors that go with #0d4dfd

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 →

#fdbd0d

#0dc5fd · #450dfd

#fd0d4d · #4dfd0d

Split-complementary

Open in tool →

#fd450d · #c5fd0d

#fd0dc5 · #fdbd0d · #0dfd45

Contrast

#0d4dfd as textRatioAAAA largeAAAFix
Aaon white
6.01:1passpassfail
  • AAA: use #0241ed as the text (7.04:1)
Aaon black
3.5:1failpassfail
  • AA: use #356afd as the text (4.63:1)
  • AAA: use #6d93fe as the text (7.25:1)
  • AA: or shift the background to #e0e0e0 (4.55:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #0d4dfd as the background.

Brands using this color

Fonts for this mood

#0d4dfd reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #0d4dfd
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 #0d4dfd and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/0d4dfd-9ca2c4-df724e-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