Color

#240e58

#240e58
hex#240e58
rgbrgb(36, 14, 88)
hslhsl(258, 73%, 20%)
oklchoklch(0.255 0.121 288)
Closest name: Blackmail (#220066)Relative luminance 0.0139

Colors that go with #240e58

Charcoal, Royal Blue and Sea Green 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 →

#42580e

#0e1d58 · #490e58

#58240e · #0e5824

Split-complementary

Open in tool →

#58490e · #1d580e

#580e1d · #42580e · #0e5849

Contrast

#240e58 as textRatioAAAA largeAAAFix
Aaon white
16.42:1passpasspassPasses AAA — no fix needed.
Aaon black
1.28:1failfailfail
  • AA: use #855ce6 as the text (4.67:1)
  • AAA: use #a383ec as the text (7.02:1)
  • AA: or shift the background to #878787 (4.57:1)
  • AAA: or shift the background to #ababab (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 #240e58 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

#240e58 reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #240e58
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 #240e58 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/240e58-ad9cc4-dfc44e-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