Color

#280345

#280345
hex#280345
rgbrgb(40, 3, 69)
hslhsl(274, 92%, 14%)
oklchoklch(0.226 0.112 303.6)
Closest name: Your Darkness (#220044)Relative luminance 0.0095

Tints & shades

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

Harmonies

Complementary

Open in tool →

#1f4503

#070345 · #450340

#452803 · #034528

Split-complementary

Open in tool →

#404503 · #034507

#450703 · #1f4503 · #034045

Contrast

#280345 as textRatioAAAA largeAAAFix
Aaon white
17.66:1passpasspassPasses AAA — no fix needed.
Aaon black
1.19:1failfailfail
  • AA: use #a63bf7 as the text (4.59:1)
  • AAA: use #c076f9 as the text (7.2:1)
  • AA: or shift the background to #828282 (4.6:1)
  • AAA: or shift the background to #a3a3a3 (7:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #280345 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

#280345 reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #280345
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 #280345 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/280345-b79cc4-c2cb62-2d1f2d-eae9f1?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