Color

#040d10

#040d10
hex#040d10
rgbrgb(4, 13, 16)
hslhsl(195, 60%, 4%)
oklchoklch(0.151 0.017 218.1)
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 →

#100704

#04100d · #040710

#10040d · #0d1004

Split-complementary

Open in tool →

#100407 · #100d04

#0d0410 · #100704 · #071004

Contrast

#040d10 as textRatioAAAA largeAAAFix
Aaon white
19.62:1passpasspassPasses AAA — no fix needed.
Aaon black
1.07:1failfailfail
  • AA: use #277e9b as the text (4.54:1)
  • AAA: use #32a2c8 as the text (7.14:1)
  • AA: or shift the background to #7a7a7a (4.57:1)
  • AAA: or shift the background to #9c9c9c (7.15:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #040d10 as the background.

Brands using this color

Palettes built around it

Fonts for this mood

#040d10 reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #040d10
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 #040d10 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/040d10-9cb5c4-df4e70-1f242d-e9f1ef?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