Color

#1750ab

#1750ab
hex#1750ab
rgbrgb(23, 80, 171)
hslhsl(217, 76%, 38%)
oklchoklch(0.452 0.157 259.9)
Closest name: Cobalt Blue (#0047ab)Relative luminance 0.0886

Colors that go with #1750ab

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 →

#ab7217

#1799ab · #2817ab

#ab1750 · #50ab17

Split-complementary

Open in tool →

#ab2817 · #99ab17

#ab1799 · #ab7217 · #17ab28

Contrast

#1750ab as textRatioAAAA largeAAAFix
Aaon white
7.58:1passpasspassPasses AAA — no fix needed.
Aaon black
2.77:1failfailfail
  • AA: use #2c72e2 as the text (4.61:1)
  • AAA: use #6296ea as the text (7.07:1)
  • AA: or shift the background to #c9c9c9 (4.57:1)
  • AAA: or shift the background to #f7f7f7 (7.07:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #1750ab as the background.

Brands using this color

Fonts for this mood

#1750ab reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #1750ab
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 #1750ab and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/1750ab-9ca7c4-df624e-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