brandsweets

Color

#317bb4

#317bb4
hex#317bb4
rgbrgb(49, 123, 180)
hslhsl(206, 57%, 45%)
oklchoklch(0.564 0.114 245.3)
Closest name: Haddock’s Sweater (#277aba)Relative luminance 0.1811
CoolModern
Open in palette toolCheck contrast

Tints & shades

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

Harmonies

Complementary

Open in tool →
317bb4b46a31

#b46a31

Analogous

Open in tool →
317bb431b4ab313ab4

#31b4ab · #313ab4

Triadic

Open in tool →
317bb4b4317b7bb431

#b4317b · #7bb431

Split-complementary

Open in tool →
317bb4b4313ab4ab31

#b4313a · #b4ab31

Tetradic

Open in tool →
317bb4ab31b4b46a313ab431

#ab31b4 · #b46a31 · #3ab431

Contrast

#317bb4 as textRatioAAAA largeAAAFix
Aaon white
4.54:1passpassfail
Aaon black
4.62:1passpassfail
  • AAA: use #579cd1 as the text (7.08:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #317bb4 as the background.

Brands using this color

Fonts for this mood

#317bb4 reads as cool, modern. The font library is tagged with the same vocabulary:

Modern fonts →
mcpConnect your agent — build around #317bb4
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 #317bb4 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/317bb4-9caec4-df4e56-1f212d-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