Color

#1f0fb3

#1f0fb3
hex#1f0fb3
rgbrgb(31, 15, 179)
hslhsl(246, 85%, 38%)
oklchoklch(0.365 0.228 270)
Closest name: Dark Galaxy (#0018a8)Relative luminance 0.0389

Colors that go with #1f0fb3

Charcoal, Crimson and Steel 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 →

#a3b30f

#0f50b3 · #710fb3

#b31f0f · #0fb31f

Split-complementary

Open in tool →

#b3710f · #50b30f

#b30f50 · #a3b30f · #0fb371

Contrast

#1f0fb3 as textRatioAAAA largeAAAFix
Aaon white
11.81:1passpasspassPasses AAA — no fix needed.
Aaon black
1.78:1failfailfail
  • AA: use #6d5ff2 as the text (4.57:1)
  • AAA: use #9489f5 as the text (7.16:1)
  • AA: or shift the background to #a1a1a1 (4.57:1)
  • AAA: or shift the background to #c9c9c9 (7.13:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #1f0fb3 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

#1f0fb3 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #1f0fb3
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 #1f0fb3 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/1f0fb3-a59cc4-dfa74e-271f2d-e9ecf1?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