Color

#040d20

#040d20
hex#040d20
rgbrgb(4, 13, 32)
hslhsl(221, 78%, 7%)
oklchoklch(0.162 0.043 261)
Closest name: Mysterious Depths (#060929)Relative luminance 0.0042

Tints & shades

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

Harmonies

Complementary

Open in tool →

#201704

#041b20 · #090420

#20040d · #0d2004

Split-complementary

Open in tool →

#200904 · #1b2004

#20041b · #201704 · #042009

Contrast

#040d20 as textRatioAAAA largeAAAFix
Aaon white
19.38:1passpasspassPasses AAA — no fix needed.
Aaon black
1.08:1failfailfail
  • AA: use #376fe6 as the text (4.58:1)
  • AAA: use #6e96ed as the text (7.25:1)
  • AA: or shift the background to #7a7a7a (4.51:1)
  • AAA: or shift the background to #9c9c9c (7.06:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #040d20 as the background.

Brands using this color

Fonts for this mood

#040d20 reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #040d20
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 #040d20 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/040d20-9ca4c4-df6b4e-211f2d-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