Color

#2b39fd

#2b39fd
hex#2b39fd
rgbrgb(43, 57, 253)
hslhsl(236, 98%, 58%)
oklchoklch(0.499 0.278 268.2)
Closest name: C64 Blue (#003aff)Relative luminance 0.1053

Tints & shades

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

Harmonies

Complementary

Open in tool →

#fdef2b

#2ba2fd · #862bfd

#fd2b39 · #39fd2b

Split-complementary

Open in tool →

#fd862b · #a2fd2b

#fd2ba2 · #fdef2b · #2bfd86

Contrast

#2b39fd as textRatioAAAA largeAAAFix
Aaon white
6.76:1passpassfail
  • AAA: use #2634fd as the text (7.02:1)
Aaon black
3.11:1failpassfail
  • AA: use #5863fd as the text (4.62:1)
  • AAA: use #868efe as the text (7.31:1)
  • AA: or shift the background to #d4d4d4 (4.56:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #2b39fd 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

#2b39fd reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #2b39fd
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 #2b39fd and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/2b39fd-9e9cc4-df8f4e-241f2d-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