Color

#2a319d

#2a319d
hex#2a319d
rgbrgb(42, 49, 157)
hslhsl(236, 58%, 39%)
oklchoklch(0.386 0.172 272.3)
Closest name: Depths of Night (#2c319b)Relative luminance 0.0512

Colors that go with #2a319d

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 →

#9d952a

#2a6b9d · #5c2a9d

#9d2a31 · #319d2a

Split-complementary

Open in tool →

#9d5c2a · #6b9d2a

#9d2a6b · #9d952a · #2a9d5c

Contrast

#2a319d as textRatioAAAA largeAAAFix
Aaon white
10.37:1passpasspassPasses AAA — no fix needed.
Aaon black
2.02:1failfailfail
  • AA: use #626ad5 as the text (4.54:1)
  • AAA: use #8a90e0 as the text (7.15:1)
  • AA: or shift the background to #ababab (4.52:1)
  • AAA: or shift the background to #d6d6d6 (7.14:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #2a319d 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

#2a319d reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #2a319d
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 #2a319d and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/2a319d-9e9cc4-df8f4e-241f2d-e9eef1?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