Color

#1e4eeb

#1e4eeb
hex#1e4eeb
rgbrgb(30, 78, 235)
hslhsl(226, 84%, 52%)
oklchoklch(0.506 0.24 264.9)
Closest name: C64 Blue (#003aff)Relative luminance 0.1172

Colors that go with #1e4eeb

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 →

#ebbb1e

#1eb5eb · #551eeb

#eb1e4e · #4eeb1e

Split-complementary

Open in tool →

#eb551e · #b5eb1e

#eb1eb5 · #ebbb1e · #1eeb55

Contrast

#1e4eeb as textRatioAAAA largeAAAFix
Aaon white
6.28:1passpassfail
  • AAA: use #1444e1 as the text (7.13:1)
Aaon black
3.34:1failpassfail
  • AA: use #436bef as the text (4.59:1)
  • AAA: use #7794f3 as the text (7.31:1)
  • AA: or shift the background to #dbdbdb (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 #1e4eeb as the background.

Brands using this color

Fonts for this mood

#1e4eeb reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #1e4eeb
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 #1e4eeb and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/1e4eeb-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