Color

#2931bc

#2931bc
hex#2931bc
rgbrgb(41, 49, 188)
hslhsl(237, 64%, 45%)
oklchoklch(0.417 0.211 270.4)
Closest name: Denim (#2243b6)Relative luminance 0.063

Tints & shades

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

Harmonies

Complementary

Open in tool →

#bcb529

#297abc · #6b29bc

#bc2931 · #31bc29

Split-complementary

Open in tool →

#bc6b29 · #7abc29

#bc297a · #bcb529 · #29bc6b

Contrast

#2931bc as textRatioAAAA largeAAAFix
Aaon white
9.29:1passpasspassPasses AAA — no fix needed.
Aaon black
2.26:1failfailfail
  • AA: use #646add as the text (4.65:1)
  • AAA: use #8a8ee5 as the text (7.08:1)
  • AA: or shift the background to #b5b5b5 (4.53:1)
  • AAA: or shift the background to #e0e0e0 (7.04:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #2931bc 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

#2931bc reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #2931bc
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 #2931bc and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/2931bc-9f9cc4-df924e-251f2d-e9edf1?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