Color

#280a2e

#280a2e
hex#280a2e
rgbrgb(40, 10, 46)
hslhsl(290, 64%, 11%)
oklchoklch(0.215 0.075 320.6)
Closest name: Dark Prom Queen (#2b0f2e)Relative luminance 0.0087

Colors that go with #280a2e

Charcoal, Sienna and Slate 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 →

#102e0a

#160a2e · #2e0a22

#2e280a · #0a2e28

Split-complementary

Open in tool →

#222e0a · #0a2e16

#2e160a · #102e0a · #0a222e

Contrast

#280a2e as textRatioAAAA largeAAAFix
Aaon white
17.9:1passpasspassPasses AAA — no fix needed.
Aaon black
1.17:1failfailfail
  • AA: use #b936d3 as the text (4.53:1)
  • AAA: use #cd71e0 as the text (7.03:1)
  • AA: or shift the background to #808080 (4.53:1)
  • AAA: or shift the background to #a3a3a3 (7.1:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #280a2e 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

#280a2e reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #280a2e
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 #280a2e and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/280a2e-bf9fc1-a6cb62-2d1f29-ece9f1?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