Color

#040f10

#040f10
hex#040f10
rgbrgb(4, 15, 16)
hslhsl(185, 60%, 4%)
oklchoklch(0.157 0.018 202.2)
Closest name: Black Wash (#0c0c0c)Relative luminance 0.004

Tints & shades

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

Harmonies

Complementary

Open in tool →

#100504

#04100b · #040910

#10040f · #0f1004

Split-complementary

Open in tool →

#100409 · #100b04

#0b0410 · #100504 · #091004

Contrast

#040f10 as textRatioAAAA largeAAAFix
Aaon white
19.43:1passpasspassPasses AAA — no fix needed.
Aaon black
1.08:1failfailfail
  • AA: use #23828b as the text (4.64:1)
  • AAA: use #2ca4af as the text (7.04:1)
  • AA: or shift the background to #7a7a7a (4.53:1)
  • AAA: or shift the background to #9c9c9c (7.08:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #040f10 as the background.

Brands using this color

Palettes built around it

Fonts for this mood

#040f10 reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #040f10
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 #040f10 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/040f10-a2b8be-df4e88-1f262d-e9f1ee?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