Color

#280c50

#280c50
hex#280c50
rgbrgb(40, 12, 80)
hslhsl(265, 74%, 18%)
oklchoklch(0.249 0.114 295.5)
Closest name: Hollow Knight (#330055)Relative luminance 0.0129

Tints & shades

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

Harmonies

Complementary

Open in tool →

#34500c

#0c1250 · #4a0c50

#50280c · #0c5028

Split-complementary

Open in tool →

#504a0c · #12500c

#500c12 · #34500c · #0c504a

Contrast

#280c50 as textRatioAAAA largeAAAFix
Aaon white
16.68:1passpasspassPasses AAA — no fix needed.
Aaon black
1.26:1failfailfail
  • AA: use #8f52e5 as the text (4.51:1)
  • AAA: use #af83ec as the text (7.28:1)
  • AA: or shift the background to #858585 (4.52:1)
  • AAA: or shift the background to #a8a8a8 (7.02:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #280c50 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

#280c50 reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #280c50
live endpoint

Point any MCP client at the shared colors endpoint and your agent gets the same engine as this page — generate_palette, check_contrast, analyze_color — read-only, no key. Every palette it proposes comes with a /palettes/new/… link: open it, lock what you like, paste the link back.

endpointhttps://mcp.brandsweets.com/colors/mcp
claude mcp add --transport http brandsweets-colors https://mcp.brandsweets.com/colors/mcp
try this prompt

analyze #280c50 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/280c50-b19cc4-dfd54e-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