Color

#2a4bf4

#2a4bf4
hex#2a4bf4
rgbrgb(42, 75, 244)
hslhsl(230, 90%, 56%)
oklchoklch(0.514 0.252 267)
Closest name: C64 Blue (#003aff)Relative luminance 0.1206

Tints & shades

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

Harmonies

Complementary

Open in tool →

#f4d22a

#2ab0f4 · #6d2af4

#f42a4b · #4bf42a

Split-complementary

Open in tool →

#f46d2a · #b0f42a

#f42ab0 · #f4d22a · #2af46d

Contrast

#2a4bf4 as textRatioAAAA largeAAAFix
Aaon white
6.16:1passpassfail
  • AAA: use #163bf3 as the text (7.11:1)
Aaon black
3.41:1failpassfail
  • AA: use #4c68f6 as the text (4.62:1)
  • AAA: use #7c91f8 as the text (7.26:1)
  • AA: or shift the background to #dedede (4.58:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #2a4bf4 as the background.

Brands using this color

Fonts for this mood

#2a4bf4 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #2a4bf4
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 #2a4bf4 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/2a4bf4-9c9ec4-df814e-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