Color

#040f44

#040f44
hex#040f44
rgbrgb(4, 15, 68)
hslhsl(230, 89%, 14%)
oklchoklch(0.206 0.1 266.1)
Closest name: Deadly Depths (#111144)Relative luminance 0.0078

Tints & shades

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

Harmonies

Complementary

Open in tool →

#433904

#042e43 · #190443

#43040f · #0f4304

Split-complementary

Open in tool →

#431904 · #2e4304

#43042e · #433904 · #044319

Contrast

#040f44 as textRatioAAAA largeAAAFix
Aaon white
18.15:1passpasspassPasses AAA — no fix needed.
Aaon black
1.16:1failfailfail
  • AA: use #4d69f5 as the text (4.65:1)
  • AAA: use #7d91f7 as the text (7.27:1)
  • AA: or shift the background to #808080 (4.6:1)
  • AAA: or shift the background to #a1a1a1 (7.03:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #040f44 as the background.

Brands using this color

Fonts for this mood

#040f44 reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #040f44
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 #040f44 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/040f44-9c9ec4-df814e-231f2d-e9eef1?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