Color

#2a28a4

#2a28a4
hex#2a28a4
rgbrgb(42, 40, 164)
hslhsl(241, 61%, 40%)
oklchoklch(0.379 0.19 273.2)
Closest name: Depths of Night (#2c319b)Relative luminance 0.0469

Colors that go with #2a28a4

Charcoal, Steel Blue and Blue 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 →

#a2a428

#2864a4 · #6828a4

#a42a28 · #28a42a

Split-complementary

Open in tool →

#a46828 · #64a428

#a42864 · #a2a428 · #28a468

Contrast

#2a28a4 as textRatioAAAA largeAAAFix
Aaon white
10.84:1passpasspassPasses AAA — no fix needed.
Aaon black
1.94:1failfailfail
  • AA: use #6967da as the text (4.55:1)
  • AAA: use #9290e4 as the text (7.33:1)
  • AA: or shift the background to #a8a8a8 (4.56:1)
  • AAA: or shift the background to #d1d1d1 (7.1:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #2a28a4 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

#2a28a4 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #2a28a4
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 #2a28a4 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/2a28a4-a19cc4-df9b4e-261f2d-e9edf1?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