Color

#175b8c

#175b8c
hex#175b8c
rgbrgb(23, 91, 140)
hslhsl(205, 72%, 32%)
oklchoklch(0.455 0.103 245.3)
Closest name: Beyond the Sea (#005784)Relative luminance 0.0956

Tints & shades

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

Harmonies

Complementary

Open in tool →

#8c4817

#178c83 · #17218c

#8c175b · #5b8c17

Split-complementary

Open in tool →

#8c1721 · #8c8317

#83178c · #8c4817 · #218c17

Contrast

#175b8c as textRatioAAAA largeAAAFix
Aaon white
7.21:1passpasspassPasses AAA — no fix needed.
Aaon black
2.91:1failfailfail
  • AA: use #1f7bbd as the text (4.63:1)
  • AAA: use #3e9ce0 as the text (7.04:1)
  • AA: or shift the background to #cfcfcf (4.63:1)
  • AAA: or shift the background to #fcfcfc (7.03:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #175b8c 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

#175b8c reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #175b8c
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 #175b8c and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/175b8c-9cafc4-df4e58-1f212d-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