Color

#3156aa

#3156aa
hex#3156aa
rgbrgb(49, 86, 170)
hslhsl(222, 55%, 43%)
oklchoklch(0.473 0.141 263.9)
Closest name: Blasphemous Blue (#3356aa)Relative luminance 0.1021

Tints & shades

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

Harmonies

Complementary

Open in tool →

#aa8631

#3192aa · #4931aa

#aa3156 · #56aa31

Split-complementary

Open in tool →

#aa4931 · #92aa31

#aa3192 · #aa8631 · #31aa49

Contrast

#3156aa as textRatioAAAA largeAAAFix
Aaon white
6.9:1passpassfail
  • AAA: use #3054a6 as the text (7.13:1)
Aaon black
3.04:1failpassfail
  • AA: use #4d73cb as the text (4.63:1)
  • AAA: use #7995d8 as the text (7.1:1)
  • AA: or shift the background to #d1d1d1 (4.52:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #3156aa 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

#3156aa reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #3156aa
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 #3156aa and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/3156aa-9ca3c4-df6e4e-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