Color

#175dcf

#175dcf
hex#175dcf
rgbrgb(23, 93, 207)
hslhsl(217, 80%, 45%)
oklchoklch(0.508 0.189 260.3)
Closest name: Denim (#1560bd)Relative luminance 0.1252

Colors that go with #175dcf

Charcoal, Crimson and Amber 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 →

#cf8817

#17b9cf · #2c17cf

#cf175d · #5dcf17

Split-complementary

Open in tool →

#cf2c17 · #b9cf17

#cf17b9 · #cf8817 · #17cf2c

Contrast

#175dcf as textRatioAAAA largeAAAFix
Aaon white
5.99:1passpassfail
  • AAA: use #1453b8 as the text (7.1:1)
Aaon black
3.5:1failpassfail
  • AA: use #2771e7 as the text (4.6:1)
  • AAA: use #6398ee as the text (7.26:1)
  • AA: or shift the background to #e0e0e0 (4.54:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #175dcf as the background.

Brands using this color

Fonts for this mood

#175dcf reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #175dcf
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 #175dcf and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/175dcf-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