Color

#2d37fb

#2d37fb
hex#2d37fb
rgbrgb(45, 55, 251)
hslhsl(237, 96%, 58%)
oklchoklch(0.495 0.277 268.7)
Closest name: C64 Blue (#003aff)Relative luminance 0.1026

Tints & shades

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

Harmonies

Complementary

Open in tool →

#fbf02d

#2d9efb · #8a2dfb

#fb2d37 · #37fb2d

Split-complementary

Open in tool →

#fb8a2d · #9efb2d

#fb2d9e · #fbf02d · #2dfb8a

Contrast

#2d37fb as textRatioAAAA largeAAAFix
Aaon white
6.88:1passpassfail
  • AAA: use #2833fb as the text (7.1:1)
Aaon black
3.05:1failpassfail
  • AA: use #5a62fc as the text (4.59:1)
  • AAA: use #878dfd as the text (7.26:1)
  • AA: or shift the background to #d1d1d1 (4.51:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #2d37fb 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

#2d37fb reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #2d37fb
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 #2d37fb and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/2d37fb-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