Color

#1931d2

#1931d2
hex#1931d2
rgbrgb(25, 49, 210)
hslhsl(232, 79%, 46%)
oklchoklch(0.435 0.241 266.5)
Closest name: Lapis on Neptune (#1f22d2)Relative luminance 0.0706

Colors that go with #1931d2

Charcoal, Sea Green 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 →

#d2b919

#198ed2 · #5d19d2

#d21931 · #31d219

Split-complementary

Open in tool →

#d25d19 · #8ed219

#d2198e · #d2b919 · #19d25d

Contrast

#1931d2 as textRatioAAAA largeAAAFix
Aaon white
8.71:1passpasspassPasses AAA — no fix needed.
Aaon black
2.41:1failfailfail
  • AA: use #566aeb as the text (4.66:1)
  • AAA: use #7f8ef0 as the text (7.03:1)
  • AA: or shift the background to #bdbdbd (4.64:1)
  • AAA: or shift the background to #e8e8e8 (7.11:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #1931d2 as the background.

Brands using this color

Fonts for this mood

#1931d2 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #1931d2
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 #1931d2 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/1931d2-9c9dc4-df864e-231f2d-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