Color

#1f35ff

#1f35ff
hex#1f35ff
rgbrgb(31, 53, 255)
hslhsl(234, 100%, 56%)
oklchoklch(0.492 0.286 266.5)
Closest name: C64 Blue (#003aff)Relative luminance 0.1006

Tints & shades

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

Harmonies

Complementary

Open in tool →

#ffe91f

#1fa5ff · #781fff

#ff1f35 · #35ff1f

Split-complementary

Open in tool →

#ff781f · #a5ff1f

#ff1fa5 · #ffe91f · #1fff78

Contrast

#1f35ff as textRatioAAAA largeAAAFix
Aaon white
6.97:1passpassfail
  • AAA: use #1a30ff as the text (7.21:1)
Aaon black
3.01:1failpassfail
  • AA: use #5263ff as the text (4.59:1)
  • AAA: use #808cff as the text (7.11:1)
  • AA: or shift the background to #d1d1d1 (4.57:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #1f35ff 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

#1f35ff reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #1f35ff
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 #1f35ff and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/1f35ff-9d9cc4-df8a4e-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