Color

#271fc7

#271fc7
hex#271fc7
rgbrgb(39, 31, 199)
hslhsl(243, 73%, 45%)
oklchoklch(0.407 0.239 270.5)
Closest name: Lapis on Neptune (#1f22d2)Relative luminance 0.0553

Colors that go with #271fc7

Charcoal, Cornflower Blue and Crimson 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 →

#bec71f

#1f6ac7 · #7b1fc7

#c7271f · #1fc727

Split-complementary

Open in tool →

#c77b1f · #6ac71f

#c71f6a · #bec71f · #1fc77b

Contrast

#271fc7 as textRatioAAAA largeAAAFix
Aaon white
9.97:1passpasspassPasses AAA — no fix needed.
Aaon black
2.11:1failfailfail
  • AA: use #6b65e7 as the text (4.64:1)
  • AAA: use #918ced as the text (7.18:1)
  • AA: or shift the background to #b0b0b0 (4.6:1)
  • AAA: or shift the background to #d9d9d9 (7.06:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #271fc7 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

#271fc7 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #271fc7
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 #271fc7 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/271fc7-a39cc4-dfa04e-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