Color

#17287d

#17287d
hex#17287d
rgbrgb(23, 40, 125)
hslhsl(230, 69%, 29%)
oklchoklch(0.327 0.144 268)
Closest name: Below the Surface (#0a2f7c)Relative luminance 0.0318

Tints & shades

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

Harmonies

Complementary

Open in tool →

#7d6c17

#175b7d · #39177d

#7d1728 · #287d17

Split-complementary

Open in tool →

#7d3917 · #5b7d17

#7d175b · #7d6c17 · #177d39

Contrast

#17287d as textRatioAAAA largeAAAFix
Aaon white
12.84:1passpasspassPasses AAA — no fix needed.
Aaon black
1.64:1failfailfail
  • AA: use #576ee0 as the text (4.71:1)
  • AAA: use #8293e8 as the text (7.29:1)
  • AA: or shift the background to #999999 (4.51:1)
  • AAA: or shift the background to #c2c2c2 (7.21:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #17287d as the background.

Brands using this color

Fonts for this mood

#17287d reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #17287d
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 #17287d and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/17287d-9c9ec4-df814e-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