Colors

The arc.net color palette

arc.net builds its pages on #0b0b0b with #000000 text and #3139fb as the accent, the color of its primary buttons and links. The 9 colors below were measured from the live site.

Measured from arc.net 6 days ago.

Palette

9 colors
ColorsRoleHexRGB
backgroundPage background#0b0b0brgb(11 11 11)
surfaceCards, panels, raised or recessed surfaces#282828rgb(40 40 40)
surface-2Secondary surface#1a1a1argb(26 26 26)
surface-3Secondary surface#040404rgb(4 4 4)
foregroundPrimary text#000000rgb(0 0 0)
primaryCandidate accent (semantic role inferred)#3139fbrgb(49 57 251)
on-primaryText on the accent#ffffffrgb(255 255 255)
secondarySecondary accent (orange)#ff5f57rgb(255 95 87)
borderHairlines, dividers, input borders#19191brgb(25 25 27)
Text on the page background
1.07:1 · below WCAG AA
Text on the accent
6.75:1 · passes WCAG AA

CSS variables

Every color as a custom property, named by role. The dark block is there when the site has a dark theme.

:root {
  --color-background: #0b0b0b;
  --color-surface: #282828;
  --color-surface-2: #1a1a1a;
  --color-surface-3: #040404;
  --color-foreground: #000000;
  --color-primary: #3139fb;
  --color-on-primary: #ffffff;
  --color-secondary: #ff5f57;
  --color-border: #19191b;
}

For AI agents

The pack is plain text, no key: fetch DESIGN.md, or hand the whole pack to Claude Code, Cursor or Copilot with the MCP server.

curl -s https://stylepack.ai/packs/arc.net/DESIGN.md

Questions

What are the arc.net brand colors?

The main arc.net colors are #3139fb (accent), #0b0b0b (background) and #000000 (text). The full palette of 9 colors, with the role of each, is on this page as hex codes.

What is the arc.net hex code?

The accent color on arc.net is #3139fb; the page background is #0b0b0b and the main text color #000000. Each is measured from the rendered page, so it is what visitors see, not a value from a style guide.

How do I use the arc.net colors in Tailwind or CSS?

Copy the CSS variables or the Tailwind v4 theme on this page, or download the design pack: it includes tokens.json (W3C design tokens), tokens.css and tailwind.css with the same values.