Color

#170387

#170387
hex#170387
rgbrgb(23, 3, 135)
hslhsl(249, 96%, 27%)
oklchoklch(0.294 0.188 271)
Closest name: darkblue (#00008b)Relative luminance 0.02

Tints & shades

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

Harmonies

Complementary

Open in tool →

#738703

#033187 · #590387

#871703 · #038717

Split-complementary

Open in tool →

#875903 · #318703

#870331 · #738703 · #038759

Contrast

#170387 as textRatioAAAA largeAAAFix
Aaon white
15.01:1passpasspassPasses AAA — no fix needed.
Aaon black
1.4:1failfailfail
  • AA: use #725afc as the text (4.58:1)
  • AAA: use #9987fd as the text (7.24:1)
  • AA: or shift the background to #8f8f8f (4.64:1)
  • AAA: or shift the background to #b3b3b3 (7.16:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #170387 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

#170387 reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #170387
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 #170387 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/170387-a79cc4-dfae4e-271f2d-e9ecf1?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