Color

#28033f

#28033f
hex#28033f
rgbrgb(40, 3, 63)
hslhsl(277, 91%, 13%)
oklchoklch(0.22 0.105 307.6)
Closest name: Your Darkness (#220044)Relative luminance 0.0088

Tints & shades

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

Harmonies

Complementary

Open in tool →

#1a3f03

#0a033f · #3f0338

#3f2803 · #033f28

Split-complementary

Open in tool →

#383f03 · #033f0a

#3f0a03 · #1a3f03 · #03383f

Contrast

#28033f as textRatioAAAA largeAAAFix
Aaon white
17.87:1passpasspassPasses AAA — no fix needed.
Aaon black
1.18:1failfailfail
  • AA: use #ab32f5 as the text (4.51:1)
  • AAA: use #c572f8 as the text (7.14:1)
  • AA: or shift the background to #808080 (4.53:1)
  • AAA: or shift the background to #a3a3a3 (7.09:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #28033f 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

#28033f reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #28033f
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 #28033f and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/28033f-b99cc4-bdcb62-2d1f2c-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