Color

#1370fb

#1370fb
hex#1370fb
rgbrgb(19, 112, 251)
hslhsl(216, 97%, 53%)
oklchoklch(0.581 0.223 259.9)
Closest name: Bluerocratic (#1f66ff)Relative luminance 0.1869

Colors that go with #1370fb

Charcoal, Crimson and Copper 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 →

#fb9e13

#13e4fb · #2a13fb

#fb1370 · #70fb13

Split-complementary

Open in tool →

#fb2a13 · #e4fb13

#fb13e4 · #fb9e13 · #13fb2a

Contrast

#1370fb as textRatioAAAA largeAAAFix
Aaon white
4.43:1failpassfail
  • AA: use #0e6dfb as the text (4.57:1)
  • AAA: use #0350c4 as the text (7.12:1)
  • AA: or shift the background to #080808 (4.52:1)
Aaon black
4.74:1passpassfail
  • AAA: use #5497fc as the text (7.21:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #1370fb as the background.

Brands using this color

Fonts for this mood

#1370fb reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #1370fb
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 #1370fb and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/1370fb-9ca7c4-df5f4e-201f2d-e9f0f1?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