Color

#315ebf

#315ebf
hex#315ebf
rgbrgb(49, 94, 191)
hslhsl(221, 59%, 47%)
oklchoklch(0.505 0.161 263.1)
Closest name: God of Rain (#4466cc)Relative luminance 0.1242

Tints & shades

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

Harmonies

Complementary

Open in tool →

#bf9231

#31a5bf · #4b31bf

#bf315e · #5ebf31

Split-complementary

Open in tool →

#bf4b31 · #a5bf31

#bf31a5 · #bf9231 · #31bf4b

Contrast

#315ebf as textRatioAAAA largeAAAFix
Aaon white
6.03:1passpassfail
  • AAA: use #2c54aa as the text (7.1:1)
Aaon black
3.48:1failpassfail
  • AA: use #4973d0 as the text (4.65:1)
  • AAA: use #7596db as the text (7.14:1)
  • AA: or shift the background to #e0e0e0 (4.57:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #315ebf as the background.

Brands using this color

Fonts for this mood

#315ebf reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #315ebf
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 #315ebf and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/315ebf-9ca4c4-df6b4e-211f2d-e9eff1?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