Color

#040a20

#040a20
hex#040a20
rgbrgb(4, 10, 32)
hslhsl(227, 78%, 7%)
oklchoklch(0.154 0.048 266.4)
Closest name: Mysterious Depths (#060929)Relative luminance 0.0035

Tints & shades

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

Harmonies

Complementary

Open in tool →

#201a04

#041820 · #0c0420

#20040a · #0a2004

Split-complementary

Open in tool →

#200c04 · #182004

#200418 · #201a04 · #04200c

Contrast

#040a20 as textRatioAAAA largeAAAFix
Aaon white
19.64:1passpasspassPasses AAA — no fix needed.
Aaon black
1.07:1failfailfail
  • AA: use #496ce9 as the text (4.6:1)
  • AAA: use #7791ee as the text (7.07:1)
  • 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 #040a20 as the background.

Brands using this color

Fonts for this mood

#040a20 reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #040a20
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 #040a20 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/040a20-9ca0c4-df7a4e-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