Color

#240336

#240336
hex#240336
rgbrgb(36, 3, 54)
hslhsl(279, 89%, 11%)
oklchoklch(0.204 0.095 310.1)
Closest name: Coal Mine (#220033)Relative luminance 0.0071

Colors that go with #240336

Charcoal, Sea Green and Sienna 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 →

#153503

#0b0335 · #35032e

#352403 · #033524

Split-complementary

Open in tool →

#2e3503 · #03350b

#350b03 · #153503 · #032e35

Contrast

#240336 as textRatioAAAA largeAAAFix
Aaon white
18.4:1passpasspassPasses AAA — no fix needed.
Aaon black
1.14:1failfailfail
  • AA: use #af30f3 as the text (4.54:1)
  • AAA: use #c76ef7 as the text (7:1)
  • AA: or shift the background to #808080 (4.66:1)
  • AAA: or shift the background to #a1a1a1 (7.12:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #240336 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

#240336 reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #240336
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 #240336 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/240336-b99fc1-b9cb62-2d1f2c-ebe9f1?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