Color

#2b43a1

#2b43a1
hex#2b43a1
rgbrgb(43, 67, 161)
hslhsl(228, 58%, 40%)
oklchoklch(0.423 0.155 268.1)
Closest name: Cascade Twilight (#234893)Relative luminance 0.071

Tints & shades

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

Harmonies

Complementary

Open in tool →

#a1892b

#2b7ea1 · #4e2ba1

#a12b43 · #43a12b

Split-complementary

Open in tool →

#a14e2b · #7ea12b

#a12b7e · #a1892b · #2ba14e

Contrast

#2b43a1 as textRatioAAAA largeAAAFix
Aaon white
8.68:1passpasspassPasses AAA — no fix needed.
Aaon black
2.42:1failfailfail
  • AA: use #566fd2 as the text (4.6:1)
  • AAA: use #8294de as the text (7.24:1)
  • AA: or shift the background to #bdbdbd (4.62:1)
  • AAA: or shift the background to #e8e8e8 (7.08:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #2b43a1 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

#2b43a1 reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #2b43a1
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 #2b43a1 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/2b43a1-9c9fc4-df7c4e-231f2d-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