Color

#040a16

#040a16
hex#040a16
rgbrgb(4, 10, 22)
hslhsl(220, 69%, 5%)
oklchoklch(0.145 0.029 259.1)
Closest name: Dark Rift (#060b14)Relative luminance 0.003

Tints & shades

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

Harmonies

Complementary

Open in tool →

#161004

#041316 · #070416

#16040a · #0a1604

Split-complementary

Open in tool →

#160704 · #131604

#160413 · #161004 · #041607

Contrast

#040a16 as textRatioAAAA largeAAAFix
Aaon white
19.81:1passpasspassPasses AAA — no fix needed.
Aaon black
1.06:1failfailfail
  • AA: use #3d72db as the text (4.63:1)
  • AAA: use #7197e5 as the text (7.26:1)
  • AA: or shift the background to #7a7a7a (4.61:1)
  • AAA: or shift the background to #9c9c9c (7.21:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #040a16 as the background.

Brands using this color

No public brand in the corpus uses this exact color yet. Extract a brand to add one.

Palettes built around it

Fonts for this mood

#040a16 reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #040a16
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 #040a16 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/040a16-9ca5c4-df694e-211f2d-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