Color

#1504b4

#1504b4
hex#1504b4
rgbrgb(21, 4, 180)
hslhsl(246, 96%, 36%)
oklchoklch(0.356 0.236 267.5)
Closest name: Dark Galaxy (#0018a8)Relative luminance 0.0354

Colors that go with #1504b4

Charcoal, Crimson and Cobalt 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 →

#a2b404

#044ab4 · #6d04b4

#b41504 · #04b415

Split-complementary

Open in tool →

#b46d04 · #4ab404

#b4044a · #a2b404 · #04b46d

Contrast

#1504b4 as textRatioAAAA largeAAAFix
Aaon white
12.29:1passpasspassPasses AAA — no fix needed.
Aaon black
1.71:1failfailfail
  • AA: use #6f5ffc as the text (4.72:1)
  • AAA: use #9387fd as the text (7.12:1)
  • AA: or shift the background to #9e9e9e (4.59:1)
  • AAA: or shift the background to #c4c4c4 (7.05:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #1504b4 as the background.

Brands using this color

No public brand in the corpus uses this exact color yet. Extract a brand to add one.

Fonts for this mood

#1504b4 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #1504b4
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 #1504b4 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/1504b4-a59cc4-dfa74e-271f2d-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