Orderly Network: SDK Theming

Customize the look and feel of your DEX using CSS variables, the theme provider, and component overrides.

When to Use

Rebranding your DEX
Changing color schemes
Adding custom fonts
Styling TradingView charts
Creating PnL share cards

Prerequisites

Orderly SDK packages installed
Tailwind CSS configured
Basic CSS knowledge

Overview

Orderly UI uses a CSS variable-based theming system with Tailwind CSS integration:

CSS Variables - Define colors, spacing, border radius
Tailwind Preset - Orderly's custom Tailwind configuration
OrderlyThemeProvider - Component-level overrides
Assets - Logo, favicon, PnL backgrounds

1. CSS Variables

All UI components use CSS variables prefixed with --oui-. Override them in your CSS to customize the theme.

Create Theme File

/* src/styles/theme.css */

:root {
  /* BRAND COLORS */
  --oui-color-primary: 99 102 241;
  --oui-color-primary-light: 165 180 252;
  --oui-color-primary-darken: 79 70 229;
  --oui-color-primary-contrast: 255 255 255;

  --oui-color-link: 99 102 241;
  --oui-color-link-light: 165 180 252;

  /* SEMANTIC COLORS */
  --oui-color-success: 34 197 94;
  --oui-color-success-light: 134 239 172;
  --oui-color-success-darken: 22 163 74;
  --oui-color-success-contrast: 255 255 255;

  --oui-color-danger: 239 68 68;
  --oui-color-danger-light: 252 165 165;
  --oui-color-danger-darken: 220 38 38;
  --oui-color-danger-contrast: 255 255 255;

  --oui-color-warning: 245 158 11;
  --oui-color-warning-light: 252 211 77;
  --oui-color-warning-darken: 217 119 6;
  --oui-color-warning-contrast: 255 255 255;

  /* TRADING COLORS */
  --oui-color-trading-profit: 34 197 94;
  --oui-color-trading-loss: 239 68 68;

  /* BACKGROUND SCALE (dark theme: 1=lightest, 10=darkest) */
  --oui-color-base-1: 100 116 139;
  --oui-color-base-2: 71 85 105;
  --oui-color-base-3: 51 65 85;
  --oui-color-base-4: 45 55 72;
  --oui-color-base-5: 39 49 66;
  --oui-color-base-6: 30 41 59;
  --oui-color-base-7: 24 33 47;
  --oui-color-base-8: 18 26 38;
  --oui-color-base-9: 15 23 42;
  --oui-color-base-10: 10 15 30;

  --oui-color-base-foreground: 255 255 255;
  --oui-color-line: 255 255 255;
  --oui-color-fill: 30 41 59;
  --oui-color-fill-active: 39 49 66;

  /* GRADIENTS */
  --oui-gradient-primary-start: 79 70 229;
  --oui-gradient-primary-end: 139 92 246;

  /* TYPOGRAPHY */
  --oui-font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;

  /* BORDER RADIUS */
  --oui-rounded-sm: 2px;
  --oui-rounded: 4px;
  --oui-rounded-md: 6px;
  --oui-rounded-lg: 8px;
  --oui-rounded-xl: 12px;
  --oui-rounded-2xl: 16px;
  --oui-rounded-full: 9999px;
}

Import Theme

/* src/styles/index.css */
@import '@orderly.network/ui/dist/styles.css';
@import './theme.css';
@import './fonts.css';

@tailwind base;
@tailwind components;
@tailwind utilities;

Note: CSS variables use space-separated RGB values (e.g., 99 102 241) not rgb() syntax. This allows Tailwind to apply opacity modifiers.

2. Color Variable Reference

Brand Colors

Variable	Usage
`--oui-color-primary`	Primary buttons, active states, accents
`--oui-color-primary-light`	Hover states, secondary highlights
`--oui-color-primary-darken`	Active/pressed states
`--oui-color-primary-contrast`	Text on primary backgrounds
`--oui-color-link`	Link text color

Semantic Colors

Variable	Usage
`--oui-color-success`	Profit, positive values, success messages
`--oui-color-danger`	Loss, negative values, errors, sell buttons
`--oui-color-warning`	Warnings, alerts, caution states

Trading Colors

Variable	Usage
`--oui-color-trading-profit`	Green for profits in orderbook, PnL
`--oui-color-trading-loss`	Red for losses in orderbook, PnL

Background Scale

base-1 (lightest) → base-10 (darkest)

Variable	Usage
`--oui-color-base-1` to `base-3`	Muted/disabled text
`--oui-color-base-4` to `base-5`	Borders, dividers
`--oui-color-base-6` to `base-7`	Card/panel backgrounds
`--oui-color-base-8` to `base-9`	Page backgrounds
`--oui-color-base-10`	Darkest background

3. Custom Fonts

Add Custom Font

/* src/styles/fonts.css */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&display=swap');

/* Or use local font files */
@font-face {
  font-family: 'CustomFont';
  src: url('/fonts/CustomFont-Regular.woff2') format('woff2');
  font-weight: 400;
  font-display: swap;
}

Apply Font

/* In theme.css */
:root {
  --oui-font-family: 'CustomFont', 'Inter', sans-serif;
}

4. Logo & Assets

Configure App Icons

import { OrderlyAppProvider } from "@orderly.network/react-app";

<OrderlyAppProvider
  brokerId="your_broker_id"
  brokerName="Your DEX"
  networkId="mainnet"
  appIcons={{
    main: {
      img: "/logo.svg",
    },
    secondary: {
      img: "/logo-small.svg",
    },
  }}
>

Favicon

<head>
  <link rel="icon" type="image/svg+xml" href="/favicon.svg" />
  <link rel="icon" type="image/x-icon" href="/favicon.ico" />
  <link rel="apple-touch-icon" sizes="180x180" href="/apple-touch-icon.png" />
</head>

5. PnL Share Backgrounds

Customize the backgrounds for the PnL sharing feature:

Add Background Images

public/
├── pnl/
│   ├── profit-bg-1.png
│   ├── profit-bg-2.png
│   └── loss-bg-1.png

Configure in TradingPage

<TradingPage
  symbol={symbol}
  sharePnLConfig={{
    backgroundImages: ['/pnl/profit-bg-1.png', '/pnl/profit-bg-2.png'],
    color: 'rgba(255, 255, 255, 0.98)',
    profitColor: 'rgb(34, 197, 94)',
    lossColor: 'rgb(239, 68, 68)',
    brandColor: 'rgb(99, 102, 241)',
  }}
/>

6. TradingView Chart Colors

Customize the TradingView chart to match your theme:

<TradingPage
  symbol={symbol}
  tradingViewConfig={{
    scriptSRC: '/tradingview/charting_library/charting_library.js',
    library_path: '/tradingview/charting_library/',
    colorConfig: {
      chartBG: '#0f172a',
      upColor: '#22c55e',
      downColor: '#ef4444',
      pnlUpColor: '#22c55e',
      pnlDownColor: '#ef4444',
      textColor: '#e2e8f0',
    },
    overrides: {
      'paneProperties.background': '#0f172a',
      'scalesProperties.textColor': '#e2e8f0',
    },
  }}
/>

7. Component Overrides

Use OrderlyThemeProvider for component-level customization:

import { OrderlyThemeProvider } from '@orderly.network/ui';

<OrderlyThemeProvider
  overrides={{
    button: {
      primary: {
        className: 'custom-primary-button',
      },
    },
    input: {
      className: 'custom-input',
    },
  }}
>
  {children}
</OrderlyThemeProvider>;

8. Tailwind Configuration

tailwind.config.ts

import type { Config } from 'tailwindcss';
import { OUITailwind } from '@orderly.network/ui';

export default {
  content: [
    './index.html',
    './src/**/*.{js,ts,jsx,tsx}',
    './node_modules/@orderly.network/**/*.{js,mjs}',
  ],
  presets: [OUITailwind.preset],
  theme: {
    extend: {
      colors: {
        brand: {
          500: '#6366f1',
          600: '#4f46e5',
        },
      },
      fontFamily: {
        sans: ['Inter', 'sans-serif'],
      },
    },
  },
  plugins: [],
} satisfies Config;

9. Complete Theme Example

Blue/Cyan Theme

:root {
  --oui-font-family: 'Inter', sans-serif;

  /* Brand - Cyan */
  --oui-color-primary: 6 182 212;
  --oui-color-primary-light: 103 232 249;
  --oui-color-primary-darken: 8 145 178;
  --oui-color-primary-contrast: 255 255 255;

  --oui-color-link: 34 211 238;

  /* Trading */
  --oui-color-trading-profit: 34 197 94;
  --oui-color-trading-loss: 239 68 68;

  /* Dark backgrounds */
  --oui-color-base-6: 17 24 39;
  --oui-color-base-7: 17 24 39;
  --oui-color-base-8: 10 15 25;
  --oui-color-base-9: 5 10 20;
  --oui-color-base-10: 0 5 15;

  /* Gradients */
  --oui-gradient-primary-start: 8 145 178;
  --oui-gradient-primary-end: 34 211 238;
}

Best Practices

Use RGB values - CSS variables use space-separated RGB (e.g., 99 102 241)
Import order matters - Import Orderly styles first, then your overrides
Test all states - Verify hover, active, disabled states look correct
Check accessibility - Ensure sufficient color contrast (WCAG 2.1)
Test on mobile - Some components have different mobile styling
Match TradingView - Keep chart colors consistent with your theme

Related Skills

orderly-sdk-dex-architecture - Project structure
orderly-sdk-install-dependency - Installing packages
orderly-sdk-page-components - Using pre-built components

orderly-sdk-theming