Color

#2b0aff

#2b0aff
hex#2b0aff
rgbrgb(43, 10, 255)
hslhsl(248, 100%, 52%)
oklchoklch(0.466 0.304 269)
Closest name: Bluebonnet (#1c1cf0)Relative luminance 0.0795

Tints & shades

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

Harmonies

Complementary

Open in tool →

#deff0a

#0a64ff · #a50aff

#ff2b0a · #0aff2b

Split-complementary

Open in tool →

#ffa50a · #64ff0a

#ff0a64 · #deff0a · #0affa5

Contrast

#2b0aff as textRatioAAAA largeAAAFix
Aaon white
8.11:1passpasspassPasses AAA — no fix needed.
Aaon black
2.59:1failfailfail
  • AA: use #725cff as the text (4.69:1)
  • AAA: use #9585ff as the text (7.08:1)
  • AA: or shift the background to #c2c2c2 (4.55:1)
  • AAA: or shift the background to #f0f0f0 (7.11:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #2b0aff as the background.

Brands using this color

Fonts for this mood

#2b0aff reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #2b0aff
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 #2b0aff and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/2b0aff-a69cc4-dfac4e-271f2d-e9ecf1?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