Color

#040a1a

#040a1a
hex#040a1a
rgbrgb(4, 10, 26)
hslhsl(224, 73%, 6%)
oklchoklch(0.148 0.037 263.4)
Closest name: Dark Rift (#060b14)Relative luminance 0.0032

Tints & shades

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

Harmonies

Complementary

Open in tool →

#1a1504

#04151a · #09041a

#1a040a · #0a1a04

Split-complementary

Open in tool →

#1a0904 · #151a04

#1a0415 · #1a1504 · #041a09

Contrast

#040a1a as textRatioAAAA largeAAAFix
Aaon white
19.75:1passpasspassPasses AAA — no fix needed.
Aaon black
1.06:1failfailfail
  • AA: use #466fe2 as the text (4.63:1)
  • AAA: use #7292e9 as the text (7:1)
  • AA: or shift the background to #7a7a7a (4.6:1)
  • AAA: or shift the background to #9c9c9c (7.19:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #040a1a as the background.

Brands using this color

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

Fonts for this mood

#040a1a reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #040a1a
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 #040a1a and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/040a1a-9ca2c4-df724e-221f2d-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