Color

#1604dc

#1604dc
hex#1604dc
rgbrgb(22, 4, 220)
hslhsl(245, 96%, 44%)
oklchoklch(0.41 0.276 266.4)
Closest name: Brutally Blue (#0022dd)Relative luminance 0.0542

Colors that go with #1604dc

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 →

#cadc04

#045edc · #8204dc

#dc1604 · #04dc16

Split-complementary

Open in tool →

#dc8204 · #5edc04

#dc045e · #cadc04 · #04dc82

Contrast

#1604dc as textRatioAAAA largeAAAFix
Aaon white
10.07:1passpasspassPasses AAA — no fix needed.
Aaon black
2.08:1failfailfail
  • AA: use #6c5ffc as the text (4.68:1)
  • AAA: use #9187fd as the text (7.09:1)
  • AA: or shift the background to #b0b0b0 (4.64:1)
  • AAA: or shift the background to #d9d9d9 (7.14:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #1604dc 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

#1604dc reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #1604dc
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 #1604dc and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/1604dc-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