Color

#2a3fcb

#2a3fcb
hex#2a3fcb
rgbrgb(42, 63, 203)
hslhsl(232, 66%, 48%)
oklchoklch(0.454 0.215 268.7)
Closest name: Denim (#2243b6)Relative luminance 0.0836

Tints & shades

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

Harmonies

Complementary

Open in tool →

#cbb62a

#2a90cb · #652acb

#cb2a3f · #3fcb2a

Split-complementary

Open in tool →

#cb652a · #90cb2a

#cb2a90 · #cbb62a · #2acb65

Contrast

#2a3fcb as textRatioAAAA largeAAAFix
Aaon white
7.86:1passpasspassPasses AAA — no fix needed.
Aaon black
2.67:1failfailfail
  • AA: use #5a6bdd as the text (4.58:1)
  • AAA: use #8491e6 as the text (7.17:1)
  • AA: or shift the background to #c4c4c4 (4.51:1)
  • AAA: or shift the background to #f2f2f2 (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 #2a3fcb 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

#2a3fcb reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #2a3fcb
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 #2a3fcb and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/2a3fcb-9c9dc4-df864e-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