Color

#28003d

#28003d
hex#28003d
rgbrgb(40, 0, 61)
hslhsl(279, 100%, 12%)
oklchoklch(0.214 0.108 309.8)
Closest name: Your Darkness (#220044)Relative luminance 0.0079

Tints & shades

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

Harmonies

Complementary

Open in tool →

#153d00

#09003d · #3d0034

#3d2800 · #003d28

Split-complementary

Open in tool →

#343d00 · #003d09

#3d0900 · #153d00 · #00343d

Contrast

#28003d as textRatioAAAA largeAAAFix
Aaon white
18.14:1passpasspassPasses AAA — no fix needed.
Aaon black
1.16:1failfailfail
  • AA: use #b224ff as the text (4.59:1)
  • AAA: use #cb6bff as the text (7.09:1)
  • AA: or shift the background to #808080 (4.59:1)
  • AAA: or shift the background to #a1a1a1 (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 #28003d 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

#28003d reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #28003d
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 #28003d and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/28003d-b99fc1-b9cb62-2d1f2c-ebe9f1?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