Color

#2b33da

#2b33da
hex#2b33da
rgbrgb(43, 51, 218)
hslhsl(237, 70%, 51%)
oklchoklch(0.453 0.244 269.6)
Closest name: Lapis on Neptune (#1f22d2)Relative luminance 0.0794

Tints & shades

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

Harmonies

Complementary

Open in tool →

#dad12b

#2b8bda · #792bda

#da2b33 · #33da2b

Split-complementary

Open in tool →

#da792b · #8bda2b

#da2b8b · #dad12b · #2bda79

Contrast

#2b33da as textRatioAAAA largeAAAFix
Aaon white
8.11:1passpasspassPasses AAA — no fix needed.
Aaon black
2.59:1failfailfail
  • AA: use #6369e3 as the text (4.66:1)
  • AAA: use #8a8fea as the text (7.2:1)
  • AA: or shift the background to #c2c2c2 (4.55:1)
  • AAA: or shift the background to #f0f0f0 (7.12:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #2b33da 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

#2b33da reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #2b33da
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 #2b33da and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/2b33da-9f9cc4-df924e-251f2d-e9edf1?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