Color

#3149bf

#3149bf
hex#3149bf
rgbrgb(49, 73, 191)
hslhsl(230, 59%, 47%)
oklchoklch(0.464 0.186 268.9)
Closest name: Denim (#2243b6)Relative luminance 0.0918

Tints & shades

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

Harmonies

Complementary

Open in tool →

#bfa731

#318fbf · #6031bf

#bf3149 · #49bf31

Split-complementary

Open in tool →

#bf6031 · #8fbf31

#bf318f · #bfa731 · #31bf60

Contrast

#3149bf as textRatioAAAA largeAAAFix
Aaon white
7.4:1passpasspassPasses AAA — no fix needed.
Aaon black
2.84:1failfailfail
  • AA: use #596dd4 as the text (4.56:1)
  • AAA: use #8191df as the text (7.05:1)
  • AA: or shift the background to #cccccc (4.61:1)
  • AAA: or shift the background to #fafafa (7.09:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #3149bf 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

#3149bf reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #3149bf
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 #3149bf and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/3149bf-9c9ec4-df814e-231f2d-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