Color

#04233f

#04233f
hex#04233f
rgbrgb(4, 35, 63)
hslhsl(208, 88%, 13%)
oklchoklch(0.251 0.064 249.7)
Closest name: Midnight Mirage (#001f3f)Relative luminance 0.0159

Colors that go with #04233f

Charcoal, Crimson and Rust 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 →

#3e1f04

#043e3c · #04063e

#3e0423 · #233e04

Split-complementary

Open in tool →

#3e0406 · #3e3c04

#3c043e · #3e1f04 · #063e04

Contrast

#04233f as textRatioAAAA largeAAAFix
Aaon white
15.94:1passpasspassPasses AAA — no fix needed.
Aaon black
1.32:1failfailfail
  • AA: use #0d77d3 as the text (4.6:1)
  • AAA: use #369af2 as the text (7.06:1)
  • AA: or shift the background to #8a8a8a (4.62:1)
  • AAA: or shift the background to #adadad (7.1:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #04233f as the background.

Brands using this color

Palettes built around it

Fonts for this mood

#04233f reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #04233f
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 #04233f and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/04233f-9cadc4-df4e51-1f212d-e9f1f1?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