Color

#2f138b

#2f138b
hex#2f138b
rgbrgb(47, 19, 139)
hslhsl(254, 76%, 31%)
oklchoklch(0.329 0.177 281.2)
Closest name: Dramatic Blue (#240093)Relative luminance 0.0293

Colors that go with #2f138b

Denim, Blue and Charcoal 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 →

#6f8b13

#13338b · #6b138b

#8b2f13 · #138b2f

Split-complementary

Open in tool →

#8b6b13 · #338b13

#8b1333 · #6f8b13 · #138b6b

Contrast

#2f138b as textRatioAAAA largeAAAFix
Aaon white
13.23:1passpasspassPasses AAA — no fix needed.
Aaon black
1.59:1failfailfail
  • AA: use #7e5de9 as the text (4.63:1)
  • AAA: use #9e86ee as the text (7.1:1)
  • AA: or shift the background to #999999 (4.65:1)
  • AAA: or shift the background to #bdbdbd (7.04:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #2f138b 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

#2f138b reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #2f138b
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 #2f138b and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/2f138b-aa9cc4-dfbb4e-291f2d-e9ebf1?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