Color

#3175bf

#3175bf
hex#3175bf
rgbrgb(49, 117, 191)
hslhsl(211, 59%, 47%)
oklchoklch(0.556 0.134 253)
Closest name: Campanula (#3473b7)Relative luminance 0.1714

Tints & shades

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

Harmonies

Complementary

Open in tool →

#bf7a31

#31bcbf · #3331bf

#bf3175 · #75bf31

Split-complementary

Open in tool →

#bf3331 · #bcbf31

#bf31bc · #bf7a31 · #31bf33

Contrast

#3175bf as textRatioAAAA largeAAAFix
Aaon white
4.74:1passpassfail
  • AAA: use #265a92 as the text (7.09:1)
Aaon black
4.43:1failpassfail
  • AA: use #3278c3 as the text (4.61:1)
  • AAA: use #619ad6 as the text (7.1:1)
  • AA: or shift the background to #fafafa (4.54:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #3175bf as the background.

Brands using this color

Fonts for this mood

#3175bf reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #3175bf
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 #3175bf and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/3175bf-9cabc4-df534e-1f202d-e9f1f1?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