Color

#2a5fbb

#2a5fbb
hex#2a5fbb
rgbrgb(42, 95, 187)
hslhsl(218, 63%, 45%)
oklchoklch(0.502 0.156 260.6)
Closest name: Blasphemous Blue (#3356aa)Relative luminance 0.1226

Tints & shades

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

Harmonies

Complementary

Open in tool →

#bb862a

#2aa8bb · #3e2abb

#bb2a5f · #5fbb2a

Split-complementary

Open in tool →

#bb3e2a · #a8bb2a

#bb2aa8 · #bb862a · #2abb3e

Contrast

#2a5fbb as textRatioAAAA largeAAAFix
Aaon white
6.08:1passpassfail
  • AAA: use #2655a6 as the text (7.16:1)
Aaon black
3.45:1failpassfail
  • AA: use #3c73d3 as the text (4.59:1)
  • AAA: use #6e97de as the text (7.14:1)
  • AA: or shift the background to #dedede (4.52:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #2a5fbb as the background.

Brands using this color

Fonts for this mood

#2a5fbb reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #2a5fbb
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 #2a5fbb and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/2a5fbb-9ca6c4-df644e-201f2d-e9f0f1?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