Color

#172178

#172178
hex#172178
rgbrgb(23, 33, 120)
hslhsl(234, 68%, 28%)
oklchoklch(0.309 0.146 269.7)
Closest name: midnightblue (#191970)Relative luminance 0.0263

Tints & shades

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

Harmonies

Complementary

Open in tool →

#786e17

#175178 · #3e1778

#781721 · #217817

Split-complementary

Open in tool →

#783e17 · #517817

#781751 · #786e17 · #17783e

Contrast

#172178 as textRatioAAAA largeAAAFix
Aaon white
13.77:1passpasspassPasses AAA — no fix needed.
Aaon black
1.53:1failfailfail
  • AA: use #5c69e0 as the text (4.55:1)
  • AAA: use #8791e8 as the text (7.25:1)
  • AA: or shift the background to #949494 (4.54:1)
  • AAA: or shift the background to #bababa (7.09:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #172178 as the background.

Brands using this color

Fonts for this mood

#172178 reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #172178
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 #172178 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/172178-9d9cc4-df8a4e-241f2d-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