#E6E0F5
#B8A7E0
#6E5BAA
#2A2440
#523378Indigo
#7A69A8Amethyst
#AD9DBFHeather
#D6D1DBFog
Cool Indigo & Amethyst is a monochromatic color palette tagged cold, purple. All four colors sit within 12° of hue, so the scheme reads as one color explored across light and dark. Neither washed out nor loud, it adapts to most contexts. The overall temperature is cool.
Color codes click any value to copy
| Swatch | Name | HEX | RGB | HSL | OKLCH |
|---|---|---|---|---|---|
| Indigo | #523378 | rgb(82, 51, 120) | hsl(267, 40%, 34%) | oklch(39.3% 0.115 302) | |
| Amethyst | #7A69A8 | rgb(122, 105, 168) | hsl(256, 27%, 54%) | oklch(56.3% 0.097 296) | |
| Heather | #AD9DBF | rgb(173, 157, 191) | hsl(268, 21%, 68%) | oklch(72.1% 0.052 306) | |
| Fog | #D6D1DB | rgb(214, 209, 219) | hsl(270, 12%, 84%) | oklch(86.8% 0.015 308) |
Why it works and how to use it
The palette holds together thanks to its monochromatic hue relationship and a strong light-to-dark ladder (84% down to 34% lightness). A natural fit for websites, presentations and branding.
- Background: Fog (#D6D1DB) is the lightest color, so it belongs on large surfaces.
- Text: Indigo (#523378) on #D6D1DB gives 6.66:1, passing WCAG AA.
- Primary: Amethyst (#7A69A8) is the most saturated mid-tone; use it for buttons and links (3.17:1 against the background, fine for UI elements).
- Accent: Heather (#AD9DBF) for highlights, badges and hover states.
1 of 6 color pairs pass WCAG AA (4.5:1); the strongest is Indigo on Fog at 6.66:1.
Preview on a real UI see how the palette feels in context
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Design faster with Cool Indigo & Amethyst
A palette preview that turns four colors into a page, so you can judge hierarchy, contrast and mood before you commit.
Primary action SecondaryCard title
Card title
Card title
Roles are assigned by lightness.
Color blindness simulation
#523378
#7A69A8
#AD9DBF
#D6D1DB
Color-blind check: all four colors stay distinguishable under protanopia, deuteranopia and tritanopia.
Contrast check WCAG ratios between palette colors
| Pair | Sample | Ratio | Level |
|---|---|---|---|
#523378 on #D6D1DB | Aa | 6.66:1 | AA |
#523378 on #AD9DBF | Aa | 3.97:1 | AA large only |
#7A69A8 on #D6D1DB | Aa | 3.17:1 | AA large only |
#523378 on #7A69A8 | Aa | 2.1:1 | Fail |
#7A69A8 on #AD9DBF | Aa | 1.89:1 | Fail |
#AD9DBF on #D6D1DB | Aa | 1.68:1 | Fail |
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