Color

#04030c

#04030c
hex#04030c
rgbrgb(4, 3, 12)
hslhsl(247, 60%, 3%)
oklchoklch(0.108 0.026 288.6)
Closest name: Eight Ball (#03050a)Relative luminance 0.0012

Colors that go with #04030c

Charcoal, Amber and 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 →

#0b0c03

#03070c · #09030c

#0c0403 · #030c04

Split-complementary

Open in tool →

#0c0903 · #070c03

#0c0307 · #0b0c03 · #030c09

Contrast

#04030c as textRatioAAAA largeAAAFix
Aaon white
20.52:1passpasspassPasses AAA — no fix needed.
Aaon black
1.02:1failfailfail
  • AA: use #7264d8 as the text (4.53:1)
  • AAA: use #978de2 as the text (7.22:1)
  • AA: or shift the background to #787878 (4.65:1)
  • AAA: or shift the background to #999999 (7.2:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #04030c 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

#04030c reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #04030c
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 #04030c and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/04030c-a59cc4-dfaa4e-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