Color

#280f4d

#280f4d
hex#280f4d
rgbrgb(40, 15, 77)
hslhsl(264, 67%, 18%)
oklchoklch(0.249 0.106 296.1)
Closest name: Hollow Knight (#330055)Relative luminance 0.0133

Colors that go with #280f4d

Teal, Cadet Blue and Champagne 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.

Real palettes that use #280f4d

Tints & shades

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

Harmonies

Complementary

Open in tool →

#344d0f

#0f154d · #470f4d

#4d280f · #0f4d28

Split-complementary

Open in tool →

#4d470f · #154d0f

#4d0f15 · #344d0f · #0f4d47

Contrast

#280f4d as textRatioAAAA largeAAAFix
Aaon white
16.59:1passpasspassPasses AAA — no fix needed.
Aaon black
1.27:1failfailfail
  • AA: use #8e59de as the text (4.63:1)
  • AAA: use #ab84e7 as the text (7.19:1)
  • AA: or shift the background to #878787 (4.62:1)
  • AAA: or shift the background to #ababab (7.22:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #280f4d 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

#280f4d reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #280f4d
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 #280f4d and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/280f4d-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