Color

#2a43bb

#2a43bb
hex#2a43bb
rgbrgb(42, 67, 187)
hslhsl(230, 63%, 45%)
oklchoklch(0.446 0.19 268.2)
Closest name: Denim (#2243b6)Relative luminance 0.0809

Tints & shades

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

Harmonies

Complementary

Open in tool →

#bba32a

#2a8bbb · #5b2abb

#bb2a43 · #43bb2a

Split-complementary

Open in tool →

#bb5b2a · #8bbb2a

#bb2a8b · #bba32a · #2abb5b

Contrast

#2a43bb as textRatioAAAA largeAAAFix
Aaon white
8.02:1passpasspassPasses AAA — no fix needed.
Aaon black
2.62:1failfailfail
  • AA: use #596ed9 as the text (4.66:1)
  • AAA: use #8292e3 as the text (7.17:1)
  • AA: or shift the background to #c2c2c2 (4.5:1)
  • AAA: or shift the background to #f0f0f0 (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 #2a43bb 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

#2a43bb reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #2a43bb
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 #2a43bb and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/2a43bb-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