Color

#040d11

#040d11
hex#040d11
rgbrgb(4, 13, 17)
hslhsl(198, 62%, 4%)
oklchoklch(0.151 0.018 224.5)
Closest name: Dark Rift (#060b14)Relative luminance 0.0035

Tints & shades

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

Harmonies

Complementary

Open in tool →

#110804

#04110e · #040611

#11040d · #0d1104

Split-complementary

Open in tool →

#110406 · #110e04

#0e0411 · #110804 · #061104

Contrast

#040d11 as textRatioAAAA largeAAAFix
Aaon white
19.61:1passpasspassPasses AAA — no fix needed.
Aaon black
1.07:1failfailfail
  • AA: use #277fa5 as the text (4.67:1)
  • AAA: use #35a1d0 as the text (7.16:1)
  • AA: or shift the background to #7a7a7a (4.57:1)
  • AAA: or shift the background to #9c9c9c (7.14:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #040d11 as the background.

Brands using this color

Palettes built around it

Fonts for this mood

#040d11 reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #040d11
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 #040d11 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/040d11-9cb3c4-df4e69-1f232d-e9f1f0?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