Color

#04153e

#04153e
hex#04153e
rgbrgb(4, 21, 62)
hslhsl(222, 88%, 13%)
oklchoklch(0.213 0.082 262.9)
Closest name: Infinite Night (#071037)Relative luminance 0.0091

Colors that go with #04153e

Charcoal, Rust and Sienna 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 →

#3e2d04

#04333e · #10043e

#3e0415 · #153e04

Split-complementary

Open in tool →

#3e1004 · #333e04

#3e0433 · #3e2d04 · #043e10

Contrast

#04153e as textRatioAAAA largeAAAFix
Aaon white
17.77:1passpasspassPasses AAA — no fix needed.
Aaon black
1.18:1failfailfail
  • AA: use #316bf2 as the text (4.52:1)
  • AAA: use #6a94f6 as the text (7.18:1)
  • AA: or shift the background to #828282 (4.62:1)
  • AAA: or shift the background to #a3a3a3 (7.04:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #04153e 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

#04153e reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #04153e
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 #04153e and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/04153e-9ca3c4-df6e4e-211f2d-e9eff1?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