Color

#28036d

#28036d
hex#28036d
rgbrgb(40, 3, 109)
hslhsl(261, 95%, 22%)
oklchoklch(0.273 0.155 285.7)
Closest name: Blackmail (#220066)Relative luminance 0.0162

Tints & shades

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

Harmonies

Complementary

Open in tool →

#486d03

#03136d · #5d036d

#6d2803 · #036d28

Split-complementary

Open in tool →

#6d5d03 · #136d03

#6d0313 · #486d03 · #036d5d

Contrast

#28036d as textRatioAAAA largeAAAFix
Aaon white
15.86:1passpasspassPasses AAA — no fix needed.
Aaon black
1.32:1failfailfail
  • AA: use #8c51fb as the text (4.69:1)
  • AAA: use #aa7efc as the text (7.1:1)
  • AA: or shift the background to #8a8a8a (4.59:1)
  • AAA: or shift the background to #adadad (7.07:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #28036d 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

#28036d reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #28036d
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 #28036d and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/28036d-af9cc4-dfcb4e-2a1f2d-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