Color

#175b78

#175b78
hex#175b78
rgbrgb(23, 91, 120)
hslhsl(198, 68%, 28%)
oklchoklch(0.444 0.08 231.5)
Closest name: Blue Velvet (#0d6183)Relative luminance 0.0902

Tints & shades

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

Harmonies

Complementary

Open in tool →

#783417

#177865 · #172a78

#78175b · #5b7817

Split-complementary

Open in tool →

#78172a · #786517

#651778 · #783417 · #2a7817

Contrast

#175b78 as textRatioAAAA largeAAAFix
Aaon white
7.49:1passpasspassPasses AAA — no fix needed.
Aaon black
2.8:1failfailfail
  • AA: use #207fa7 as the text (4.66:1)
  • AAA: use #29a2d6 as the text (7.23:1)
  • AA: or shift the background to #c9c9c9 (4.52:1)
  • AAA: or shift the background to #fafafa (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 #175b78 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

#175b78 reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #175b78
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 #175b78 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/175b78-9cb3c4-df4e69-1f232d-e9f1f0?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