# Color Conversion: Hex to oklch()

## Common Color Conversions

### Grays

| Hex       | oklch()              | Description    |
| --------- | -------------------- | -------------- |
| `#ffffff` | `oklch(1 0 0)`       | White          |
| `#f9fafb` | `oklch(0.99 0 0)`    | Gray 50        |
| `#f3f4f6` | `oklch(0.97 0 0)`    | Gray 100       |
| `#e5e7eb` | `oklch(0.93 0 0)`    | Gray 200       |
| `#d1d5db` | `oklch(0.88 0 0)`    | Gray 300       |
| `#9ca3af` | `oklch(0.74 0 0)`    | Gray 400       |
| `#6b7280` | `oklch(0.62 0 0)`    | Gray 500       |
| `#4b5563` | `oklch(0.51 0 0)`    | Gray 600       |
| `#374151` | `oklch(0.42 0 0)`    | Gray 700       |
| `#1f2937` | `oklch(0.31 0 0)`    | Gray 800       |
| `#111827` | `oklch(0.21 0 0)`    | Gray 900       |
| `#000000` | `oklch(0 0 0)`       | Black          |

### Blues

| Hex       | oklch()              | Description    |
| --------- | -------------------- | -------------- |
| `#eff6ff` | `oklch(0.98 0.01 250)` | Blue 50      |
| `#dbeafe` | `oklch(0.95 0.03 250)` | Blue 100     |
| `#bfdbfe` | `oklch(0.90 0.06 250)` | Blue 200     |
| `#93c5fd` | `oklch(0.82 0.10 250)` | Blue 300     |
| `#60a5fa` | `oklch(0.73 0.16 250)` | Blue 400     |
| `#3b82f6` | `oklch(0.65 0.25 270)` | Blue 500     |
| `#2563eb` | `oklch(0.55 0.28 270)` | Blue 600     |
| `#1d4ed8` | `oklch(0.47 0.27 270)` | Blue 700     |
| `#1e40af` | `oklch(0.40 0.24 270)` | Blue 800     |
| `#1e3a8a` | `oklch(0.33 0.20 270)` | Blue 900     |

### Greens

| Hex       | oklch()              | Description    |
| --------- | -------------------- | -------------- |
| `#f0fdf4` | `oklch(0.99 0.01 142)` | Green 50     |
| `#dcfce7` | `oklch(0.97 0.03 142)` | Green 100    |
| `#bbf7d0` | `oklch(0.93 0.07 142)` | Green 200    |
| `#86efac` | `oklch(0.87 0.13 142)` | Green 300    |
| `#4ade80` | `oklch(0.79 0.18 142)` | Green 400    |
| `#22c55e` | `oklch(0.72 0.15 142)` | Green 500    |
| `#16a34a` | `oklch(0.61 0.17 142)` | Green 600    |
| `#15803d` | `oklch(0.50 0.15 142)` | Green 700    |
| `#166534` | `oklch(0.41 0.13 142)` | Green 800    |
| `#14532d` | `oklch(0.33 0.11 142)` | Green 900    |

### Reds

| Hex       | oklch()              | Description    |
| --------- | -------------------- | -------------- |
| `#fef2f2` | `oklch(0.98 0.01 25)` | Red 50         |
| `#fee2e2` | `oklch(0.95 0.03 25)` | Red 100        |
| `#fecaca` | `oklch(0.90 0.06 25)` | Red 200        |
| `#fca5a5` | `oklch(0.82 0.11 25)` | Red 300        |
| `#f87171` | `oklch(0.73 0.16 25)` | Red 400        |
| `#ef4444` | `oklch(0.65 0.22 25)` | Red 500        |
| `#dc2626` | `oklch(0.55 0.24 25)` | Red 600        |
| `#b91c1c` | `oklch(0.47 0.22 25)` | Red 700        |
| `#991b1b` | `oklch(0.40 0.19 25)` | Red 800        |
| `#7f1d1d` | `oklch(0.33 0.16 25)` | Red 900        |

### Purples

| Hex       | oklch()              | Description      |
| --------- | -------------------- | ---------------- |
| `#faf5ff` | `oklch(0.98 0.01 320)` | Purple 50      |
| `#f3e8ff` | `oklch(0.95 0.04 320)` | Purple 100     |
| `#e9d5ff` | `oklch(0.89 0.08 320)` | Purple 200     |
| `#d8b4fe` | `oklch(0.82 0.14 320)` | Purple 300     |
| `#c084fc` | `oklch(0.73 0.20 320)` | Purple 400     |
| `#a855f7` | `oklch(0.65 0.25 320)` | Purple 500     |
| `#9333ea` | `oklch(0.55 0.28 320)` | Purple 600     |
| `#7e22ce` | `oklch(0.47 0.27 320)` | Purple 700     |
| `#6b21a8` | `oklch(0.40 0.24 320)` | Purple 800     |
| `#581c87` | `oklch(0.33 0.20 320)` | Purple 900     |

### Yellows / Oranges

| Hex       | oklch()              | Description      |
| --------- | -------------------- | ---------------- |
| `#fef3c7` | `oklch(0.96 0.05 90)` | Yellow 100       |
| `#fde047` | `oklch(0.90 0.15 90)` | Yellow 300       |
| `#facc15` | `oklch(0.82 0.18 90)` | Yellow 400       |
| `#eab308` | `oklch(0.75 0.20 90)` | Yellow 500       |
| `#fed7aa` | `oklch(0.89 0.07 60)` | Orange 200       |
| `#fdba74` | `oklch(0.82 0.12 60)` | Orange 300       |
| `#fb923c` | `oklch(0.75 0.16 60)` | Orange 400       |
| `#f97316` | `oklch(0.68 0.20 60)` | Orange 500       |
| `#ea580c` | `oklch(0.60 0.22 60)` | Orange 600       |

### Teals / Cyans

| Hex       | oklch()                | Description    |
| --------- | ---------------------- | -------------- |
| `#ccfbf1` | `oklch(0.95 0.04 180)` | Teal 100       |
| `#99f6e4` | `oklch(0.92 0.08 180)` | Teal 200       |
| `#5eead4` | `oklch(0.86 0.13 180)` | Teal 300       |
| `#2dd4bf` | `oklch(0.79 0.16 180)` | Teal 400       |
| `#14b8a6` | `oklch(0.72 0.17 180)` | Teal 500       |
| `#cffafe` | `oklch(0.98 0.02 200)` | Cyan 100       |
| `#a5f3fc` | `oklch(0.94 0.05 200)` | Cyan 200       |
| `#67e8f9` | `oklch(0.88 0.10 200)` | Cyan 300       |
| `#22d3ee` | `oklch(0.81 0.15 200)` | Cyan 400       |
| `#06b6d4` | `oklch(0.73 0.18 200)` | Cyan 500       |

## Conversion Tips

### Understanding oklch() Parameters

**Lightness (0-1):**
- 0.95-1.0: Very light colors (50-100)
- 0.80-0.95: Light colors (200-300)
- 0.65-0.80: Medium colors (400-500)
- 0.45-0.65: Dark colors (600-700)
- 0.20-0.45: Very dark colors (800-900)
- 0-0.20: Near black

**Chroma (0-0.4):**
- 0: Grayscale
- 0.01-0.05: Very muted
- 0.05-0.15: Muted
- 0.15-0.25: Vibrant
- 0.25+: Very vivid

**Hue (0-360):**
- 0-30: Red
- 30-60: Orange
- 60-90: Yellow
- 90-150: Green
- 150-210: Cyan/Teal
- 210-270: Blue
- 270-330: Purple/Violet
- 330-360: Magenta/Pink

## Online Conversion Tools

1. **OKLCH Color Picker:** https://oklch.com/
2. **Evil Martians OKLCH Converter:** https://oklch.evilmartians.io/
3. **Colorjs.io:** https://colorjs.io/apps/convert/

## Manual Conversion Process

1. Convert hex to RGB
2. Use online tool to convert RGB to OkLCh
3. Round values to 2 decimal places
4. Test in browser to verify appearance

**Example:**

```
Hex: #3b82f6 (Tailwind Blue 500)
RGB: rgb(59, 130, 246)
OkLCh: oklch(0.65 0.25 270)
```

## Custom Color Palette Example

```css
@theme {
  --color-brand-purple: oklch(0.65 0.25 320);
  --color-brand-blue: oklch(0.65 0.25 270);
  --color-brand-teal: oklch(0.72 0.17 180);

  --color-success: oklch(0.72 0.15 142);
  --color-warning: oklch(0.78 0.18 60);
  --color-error: oklch(0.65 0.22 25);
  --color-info: oklch(0.73 0.18 200);

  --color-text: oklch(0.21 0 0);
  --color-text-muted: oklch(0.51 0 0);
  --color-background: oklch(0.99 0 0);
  --color-surface: oklch(1 0 0);
}
```