Color

#3147ed

#3147ed
hex#3147ed
rgbrgb(49, 71, 237)
hslhsl(233, 84%, 56%)
oklchoklch(0.503 0.246 268.7)
Closest name: C64 Blue (#003aff)Relative luminance 0.1127

Tints & shades

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

Harmonies

Complementary

Open in tool →

#edd731

#31a5ed · #7931ed

#ed3147 · #47ed31

Split-complementary

Open in tool →

#ed7931 · #a5ed31

#ed31a5 · #edd731 · #31ed79

Contrast

#3147ed as textRatioAAAA largeAAAFix
Aaon white
6.45:1passpassfail
  • AAA: use #273eec as the text (7.03:1)
Aaon black
3.25:1failpassfail
  • AA: use #5668f0 as the text (4.63:1)
  • AAA: use #808ef4 as the text (7.09:1)
  • AA: or shift the background to #d9d9d9 (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 #3147ed 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

#3147ed reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #3147ed
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 #3147ed and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/3147ed-9c9cc4-df884e-241f2d-e9eef1?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