Color

#2a3bbb

#2a3bbb
hex#2a3bbb
rgbrgb(42, 59, 187)
hslhsl(233, 63%, 45%)
oklchoklch(0.432 0.199 269.5)
Closest name: Denim (#2243b6)Relative luminance 0.0721

Tints & shades

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

Harmonies

Complementary

Open in tool →

#bbaa2a

#2a84bb · #622abb

#bb2a3b · #3bbb2a

Split-complementary

Open in tool →

#bb622a · #84bb2a

#bb2a84 · #bbaa2a · #2abb62

Contrast

#2a3bbb as textRatioAAAA largeAAAFix
Aaon white
8.6:1passpasspassPasses AAA — no fix needed.
Aaon black
2.44:1failfailfail
  • AA: use #5d6cda as the text (4.62:1)
  • AAA: use #8691e4 as the text (7.18:1)
  • AA: or shift the background to #bdbdbd (4.58:1)
  • AAA: or shift the background to #e8e8e8 (7.02:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #2a3bbb 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

#2a3bbb reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #2a3bbb
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 #2a3bbb and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/2a3bbb-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