Color

#04033a

#04033a
hex#04033a
rgbrgb(4, 3, 58)
hslhsl(241, 90%, 12%)
oklchoklch(0.169 0.101 269.4)
Closest name: Oblivion (#000435)Relative luminance 0.004

Colors that go with #04033a

Blue Violet, Charcoal and Crimson 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 →

#393a03

#031e3a · #20033a

#3a0403 · #033a04

Split-complementary

Open in tool →

#3a2003 · #1e3a03

#3a031e · #393a03 · #033a20

Contrast

#04033a as textRatioAAAA largeAAAFix
Aaon white
19.46:1passpasspassPasses AAA — no fix needed.
Aaon black
1.08:1failfailfail
  • AA: use #6664f7 as the text (4.73:1)
  • AAA: use #8d8bf9 as the text (7.19:1)
  • AA: or shift the background to #7a7a7a (4.53:1)
  • AAA: or shift the background to #9c9c9c (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 #04033a as the background.

Brands using this color

Fonts for this mood

#04033a reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #04033a
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 #04033a and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/04033a-a19cc4-df9b4e-261f2d-e9edf1?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