Color

#2a45bb

#2a45bb
hex#2a45bb
rgbrgb(42, 69, 187)
hslhsl(229, 63%, 45%)
oklchoklch(0.45 0.188 267.8)
Closest name: Denim (#2243b6)Relative luminance 0.0834

Tints & shades

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

Harmonies

Complementary

Open in tool →

#bba12a

#2a8dbb · #582abb

#bb2a45 · #45bb2a

Split-complementary

Open in tool →

#bb582a · #8dbb2a

#bb2a8d · #bba12a · #2abb58

Contrast

#2a45bb as textRatioAAAA largeAAAFix
Aaon white
7.87:1passpasspassPasses AAA — no fix needed.
Aaon black
2.67:1failfailfail
  • AA: use #556dd8 as the text (4.57:1)
  • AAA: use #8294e3 as the text (7.29:1)
  • AA: or shift the background to #c4c4c4 (4.51:1)
  • AAA: or shift the background to #f2f2f2 (7.03:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #2a45bb 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

#2a45bb reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #2a45bb
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 #2a45bb and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/2a45bb-9c9fc4-df7e4e-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