Color

#1d4ded

#1d4ded
hex#1d4ded
rgbrgb(29, 77, 237)
hslhsl(226, 85%, 52%)
oklchoklch(0.506 0.244 264.9)
Closest name: C64 Blue (#003aff)Relative luminance 0.1168

Colors that go with #1d4ded

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 →

#edbc1d

#1db5ed · #541ded

#ed1d4d · #4ded1d

Split-complementary

Open in tool →

#ed541d · #b5ed1d

#ed1db5 · #edbc1d · #1ded54

Contrast

#1d4ded as textRatioAAAA largeAAAFix
Aaon white
6.29:1passpassfail
  • AAA: use #1243e2 as the text (7.18:1)
Aaon black
3.34:1failpassfail
  • AA: use #426bf0 as the text (4.59:1)
  • AAA: use #7694f4 as the text (7.31:1)
  • AA: or shift the background to #dbdbdb (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 #1d4ded as the background.

Brands using this color

Fonts for this mood

#1d4ded reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #1d4ded
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 #1d4ded and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/1d4ded-9ca1c4-df774e-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