Color

#240a4c

#240a4c
hex#240a4c
rgbrgb(36, 10, 76)
hslhsl(264, 77%, 17%)
oklchoklch(0.237 0.111 294)
Closest name: Your Darkness (#220044)Relative luminance 0.0111

Colors that go with #240a4c

Charcoal, Royal Blue and Teal lead the list. Each partner is a real named colour with the reason it works — a wheel relationship, a neutral that carries it, or a pairing lifted from a palette or brand system that actually shipped — and every pair opens in the palette tool.

Tints & shades

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

Harmonies

Complementary

Open in tool →

#324d0a

#0a114d · #460a4d

#4d250a · #0a4d25

Split-complementary

Open in tool →

#4d460a · #114d0a

#4d0a11 · #324d0a · #0a4d46

Contrast

#240a4c as textRatioAAAA largeAAAFix
Aaon white
17.17:1passpasspassPasses AAA — no fix needed.
Aaon black
1.22:1failfailfail
  • AA: use #8f53e9 as the text (4.58:1)
  • AAA: use #ad81ef as the text (7.16:1)
  • AA: or shift the background to #858585 (4.65:1)
  • AAA: or shift the background to #a6a6a6 (7.05:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #240a4c 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

#240a4c reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #240a4c
live endpoint

Point any MCP client at the shared colors endpoint and your agent gets the same engine as this page — direct_palette, edit_direction, check_palette, check_contrast — read-only, no key. Every direction it proposes comes with a /colors/d/… link: open it, lock what you like, paste the link back, and the agent edits rather than re-rolls.

endpointhttps://mcp.brandsweets.com/colors/mcp
claude mcp add --transport http brandsweets-colors https://mcp.brandsweets.com/colors/mcp
try this prompt

analyze #240a4c and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/240a4c-b19cc4-dfd34e-2b1f2d-e9eaf1?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