Color

#240e5d

#240e5d
hex#240e5d
rgbrgb(36, 14, 93)
hslhsl(257, 74%, 21%)
oklchoklch(0.26 0.128 286.2)
Closest name: Blackmail (#220066)Relative luminance 0.0148

Colors that go with #240e5d

Charcoal, Royal Blue and Blue 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 →

#475d0e

#0e1f5d · #4c0e5d

#5d240e · #0e5d24

Split-complementary

Open in tool →

#5d4c0e · #1f5d0e

#5d0e1f · #475d0e · #0e5d4c

Contrast

#240e5d as textRatioAAAA largeAAAFix
Aaon white
16.21:1passpasspassPasses AAA — no fix needed.
Aaon black
1.3:1failfailfail
  • AA: use #825be6 as the text (4.59:1)
  • AAA: use #a487ed as the text (7.27:1)
  • AA: or shift the background to #878787 (4.51:1)
  • AAA: or shift the background to #ababab (7.06:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #240e5d 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

#240e5d reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #240e5d
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 #240e5d and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/240e5d-ac9cc4-dfc24e-291f2d-e9ebf1?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