Color

#1f116a

#1f116a
hex#1f116a
rgbrgb(31, 17, 106)
hslhsl(249, 72%, 24%)
oklchoklch(0.274 0.142 278.6)
Closest name: midnightblue (#191970)Relative luminance 0.0173

Colors that go with #1f116a

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 →

#5c6911

#113069 · #4a1169

#691e11 · #11691e

Split-complementary

Open in tool →

#694a11 · #306911

#691130 · #5c6911 · #11694a

Contrast

#1f116a as textRatioAAAA largeAAAFix
Aaon white
15.6:1passpasspassPasses AAA — no fix needed.
Aaon black
1.35:1failfailfail
  • AA: use #7561e5 as the text (4.6:1)
  • AAA: use #9789ec as the text (7.11:1)
  • AA: or shift the background to #8a8a8a (4.52:1)
  • AAA: or shift the background to #b0b0b0 (7.19:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #1f116a 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

#1f116a reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #1f116a
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 #1f116a and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/1f116a-a79cc4-dfae4e-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