Color

#28015a

#28015a
hex#28015a
rgbrgb(40, 1, 90)
hslhsl(266, 98%, 18%)
oklchoklch(0.248 0.136 293)
Closest name: Blackmail (#220066)Relative luminance 0.0121

Colors that go with #28015a

Charcoal, Royal Blue and Teal lead the list. Each partner is a real named colour with the reason it works — a wheel relationship, a neutral that carries it, or a pairing lifted from a palette or brand system that actually shipped — and every pair opens in the palette tool.

Tints & shades

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

Harmonies

Complementary

Open in tool →

#345b01

#01075b · #55015b

#5b2801 · #015b28

Split-complementary

Open in tool →

#5b5501 · #075b01

#5b0107 · #345b01 · #015b55

Contrast

#28015a as textRatioAAAA largeAAAFix
Aaon white
16.91:1passpasspassPasses AAA — no fix needed.
Aaon black
1.24:1failfailfail
  • AA: use #9444fd as the text (4.5:1)
  • AAA: use #b47cfe as the text (7.25:1)
  • AA: or shift the background to #858585 (4.58:1)
  • AAA: or shift the background to #a8a8a8 (7.11:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #28015a 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

#28015a reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #28015a
live endpoint

Point any MCP client at the shared colors endpoint and your agent gets the same engine as this page — direct_palette, edit_direction, check_palette, check_contrast — read-only, no key. Every direction it proposes comes with a /colors/d/… link: open it, lock what you like, paste the link back, and the agent edits rather than re-rolls.

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

analyze #28015a and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/28015a-b29cc4-dfd74e-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