Color

#1304be

#1304be
hex#1304be
rgbrgb(19, 4, 190)
hslhsl(245, 96%, 38%)
oklchoklch(0.369 0.246 266.7)
Closest name: mediumblue (#0000cd)Relative luminance 0.0394

Colors that go with #1304be

Charcoal, Crimson and Cornflower Blue 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 →

#aebe04

#0451be · #7004be

#be1304 · #04be13

Split-complementary

Open in tool →

#be7004 · #51be04

#be0451 · #aebe04 · #04be70

Contrast

#1304be as textRatioAAAA largeAAAFix
Aaon white
11.74:1passpasspassPasses AAA — no fix needed.
Aaon black
1.79:1failfailfail
  • AA: use #6c5ffc as the text (4.68:1)
  • AAA: use #9187fd as the text (7.09:1)
  • AA: or shift the background to #a1a1a1 (4.54:1)
  • AAA: or shift the background to #c9c9c9 (7.09:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #1304be as the background.

Brands using this color

Fonts for this mood

#1304be reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #1304be
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 #1304be and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/1304be-a49cc4-dfa54e-261f2d-e9ecf1?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