Color

#040f77

#040f77
hex#040f77
rgbrgb(4, 15, 119)
hslhsl(234, 93%, 24%)
oklchoklch(0.274 0.167 265.4)
Closest name: Deep Blue (#040273)Relative luminance 0.017

Tints & shades

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

Harmonies

Complementary

Open in tool →

#766b04

#044976 · #320476

#760410 · #107604

Split-complementary

Open in tool →

#763204 · #497604

#760449 · #766b04 · #047632

Contrast

#040f77 as textRatioAAAA largeAAAFix
Aaon white
15.67:1passpasspassPasses AAA — no fix needed.
Aaon black
1.34:1failfailfail
  • AA: use #5363f9 as the text (4.52:1)
  • AAA: use #8490fb as the text (7.36:1)
  • AA: or shift the background to #8a8a8a (4.54:1)
  • AAA: or shift the background to #b0b0b0 (7.23:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #040f77 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

#040f77 reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #040f77
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 #040f77 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/040f77-9d9cc4-df8a4e-241f2d-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