Color

#1e4ddc

#1e4ddc
hex#1e4ddc
rgbrgb(30, 77, 220)
hslhsl(225, 76%, 49%)
oklchoklch(0.49 0.223 264.8)
Closest name: C64 Blue (#003aff)Relative luminance 0.1075

Colors that go with #1e4ddc

Charcoal, Sea Green 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.

Real palettes that use #1e4ddc

Tints & shades

Every swatch is its own page — click any to analyze it.

Harmonies

Complementary

Open in tool →

#dcac1e

#1eacdc · #4d1edc

#dc1e4d · #4ddc1e

Split-complementary

Open in tool →

#dc4d1e · #acdc1e

#dc1eac · #dcac1e · #1edc4d

Contrast

#1e4ddc as textRatioAAAA largeAAAFix
Aaon white
6.67:1passpassfail
  • AAA: use #1d4ad3 as the text (7.07:1)
Aaon black
3.15:1failpassfail
  • AA: use #476fe6 as the text (4.68:1)
  • AAA: use #7492ec as the text (7.07:1)
  • AA: or shift the background to #d6d6d6 (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 #1e4ddc as the background.

Brands using this color

Palettes built around it

Fonts for this mood

#1e4ddc reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #1e4ddc
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 #1e4ddc and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/1e4ddc-9ca1c4-df754e-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