Color

#04103e

#04103e
hex#04103e
rgbrgb(4, 16, 62)
hslhsl(228, 88%, 13%)
oklchoklch(0.201 0.09 265.6)
Closest name: Infinite Night (#071037)Relative luminance 0.0074

Tints & shades

Every swatch is its own page — click any to analyze it.

Harmonies

Complementary

Open in tool →

#3e3304

#042d3e · #15043e

#3e0410 · #103e04

Split-complementary

Open in tool →

#3e1504 · #2d3e04

#3e042d · #3e3304 · #043e15

Contrast

#04103e as textRatioAAAA largeAAAFix
Aaon white
18.28:1passpasspassPasses AAA — no fix needed.
Aaon black
1.15:1failfailfail
  • AA: use #496bf3 as the text (4.68:1)
  • AAA: use #7992f6 as the text (7.26:1)
  • AA: or shift the background to #808080 (4.63:1)
  • AAA: or shift the background to #a1a1a1 (7.07:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #04103e as the background.

Brands using this color

Fonts for this mood

#04103e reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #04103e
live endpoint

Point any MCP client at the shared colors endpoint and your agent gets the same engine as this page — generate_palette, check_contrast, analyze_color — read-only, no key. Every palette it proposes comes with a /palettes/new/… link: open it, lock what you like, paste the link back.

endpointhttps://mcp.brandsweets.com/colors/mcp
claude mcp add --transport http brandsweets-colors https://mcp.brandsweets.com/colors/mcp
try this prompt

analyze #04103e and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/04103e-9c9fc4-df7c4e-231f2d-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