Color

#04101f

#04101f
hex#04101f
rgbrgb(4, 16, 31)
hslhsl(213, 77%, 7%)
oklchoklch(0.17 0.037 252.7)
Closest name: Midnight Edition (#0c121b)Relative luminance 0.005

Tints & shades

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

Harmonies

Complementary

Open in tool →

#201304

#041e20 · #050420

#200410 · #102004

Split-complementary

Open in tool →

#200504 · #1e2004

#20041e · #201304 · #042005

Contrast

#04101f as textRatioAAAA largeAAAFix
Aaon white
19.11:1passpasspassPasses AAA — no fix needed.
Aaon black
1.1:1failfailfail
  • AA: use #1d73dd as the text (4.55:1)
  • AAA: use #5899e9 as the text (7.15:1)
  • AA: or shift the background to #7d7d7d (4.64:1)
  • AAA: or shift the background to #9e9e9e (7.13:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #04101f as the background.

Brands using this color

Palettes built around it

Fonts for this mood

#04101f reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #04101f
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 #04101f and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/04101f-9ca9c4-df584e-1f202d-e9f0f1?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