Color

#2a53ac

#2a53ac
hex#2a53ac
rgbrgb(42, 83, 172)
hslhsl(221, 61%, 42%)
oklchoklch(0.465 0.15 263.2)
Closest name: Blasphemous Blue (#3356aa)Relative luminance 0.0966

Tints & shades

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

Harmonies

Complementary

Open in tool →

#ac832a

#2a94ac · #422aac

#ac2a53 · #53ac2a

Split-complementary

Open in tool →

#ac422a · #94ac2a

#ac2a94 · #ac832a · #2aac42

Contrast

#2a53ac as textRatioAAAA largeAAAFix
Aaon white
7.16:1passpasspassPasses AAA — no fix needed.
Aaon black
2.93:1failfailfail
  • AA: use #4673d2 as the text (4.64:1)
  • AAA: use #7395dd as the text (7.07:1)
  • AA: or shift the background to #cfcfcf (4.6:1)
  • AAA: or shift the background to #ffffff (7.16:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #2a53ac as the background.

Brands using this color

Fonts for this mood

#2a53ac reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #2a53ac
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 #2a53ac and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/2a53ac-9ca4c4-df6b4e-211f2d-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