Color

#172fcf

#172fcf
hex#172fcf
rgbrgb(23, 47, 207)
hslhsl(232, 80%, 45%)
oklchoklch(0.428 0.239 266.3)
Closest name: Lapis on Neptune (#1f22d2)Relative luminance 0.0672

Tints & shades

Every swatch is its own page — click any to analyze it.

Harmonies

Complementary

Open in tool →

#cfb617

#178bcf · #5a17cf

#cf172f · #2fcf17

Split-complementary

Open in tool →

#cf5a17 · #8bcf17

#cf178b · #cfb617 · #17cf5a

Contrast

#172fcf as textRatioAAAA largeAAAFix
Aaon white
8.96:1passpasspassPasses AAA — no fix needed.
Aaon black
2.34:1failfailfail
  • AA: use #5569ec as the text (4.62:1)
  • AAA: use #7e8ef1 as the text (7.03:1)
  • AA: or shift the background to #b8b8b8 (4.52:1)
  • AAA: or shift the background to #e6e6e6 (7.18:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #172fcf 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

#172fcf reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #172fcf
live endpoint

Point any MCP client at the shared colors endpoint and your agent gets the same engine as this page — generate_palette, check_contrast, analyze_color — read-only, no key. Every palette it proposes comes with a /palettes/new/… link: open it, lock what you like, paste the link back.

endpointhttps://mcp.brandsweets.com/colors/mcp
claude mcp add --transport http brandsweets-colors https://mcp.brandsweets.com/colors/mcp
try this prompt

analyze #172fcf and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/172fcf-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