OKLCH Studio · shadcn/ui accent theme
shadcn/ui Sky theme colors: primary oklch(0.5 0.134 242.749) & chart tokens
shadcn/ui Sky: primary #0069a8 light / #00598a dark (oklch(0.5 0.134 242.749)). 20 of 22 checked pairs meet WCAG AA 4.5:1 (light 9/11, dark 11/11). Copy the accent overrides on the neutral base as OKLCH, @theme mapping or hex.
Sky is an accent theme: it overrides primary, secondary, the chart colours and sidebar-primary, and sits on top of a base colour. Every other value below comes from the neutral base (shadcn's default), and the contrast audit uses that combination. Source: shadcn/ui (MIT, © 2023 shadcn); all themes.
Preview
Card title
Muted description text on the card.
PrimarySecondaryAccentDestructive
Muted block with input border
Card title
Muted description text on the card.
PrimarySecondaryAccentDestructive
Muted block with input border
light mode tokens
| Token | Swatch | oklch() | Hex | In sRGB |
|---|---|---|---|---|
| --background | oklch(1 0 0) | #ffffff | Yes | |
| --foreground | oklch(0.145 0 0) | #0a0a0a | Yes | |
| --card | oklch(1 0 0) | #ffffff | Yes | |
| --card-foreground | oklch(0.145 0 0) | #0a0a0a | Yes | |
| --popover | oklch(1 0 0) | #ffffff | Yes | |
| --popover-foreground | oklch(0.145 0 0) | #0a0a0a | Yes | |
| --primarysky | oklch(0.5 0.134 242.749) | #0069a8 | No — hex is clipped | |
| --primary-foregroundsky | oklch(0.977 0.013 236.62) | #f0f9ff | No — hex is clipped | |
| --secondarysky | oklch(0.967 0.001 286.375) | #f4f4f5 | Yes | |
| --secondary-foregroundsky | oklch(0.21 0.006 285.885) | #18181b | Yes | |
| --muted | oklch(0.97 0 0) | #f5f5f5 | Yes | |
| --muted-foreground | oklch(0.556 0 0) | #737373 | Yes | |
| --accent | oklch(0.97 0 0) | #f5f5f5 | Yes | |
| --accent-foreground | oklch(0.205 0 0) | #171717 | Yes | |
| --destructive | oklch(0.577 0.245 27.325) | #e7000b | No — hex is clipped | |
| --border | oklch(0.922 0 0) | #e5e5e5 | Yes | |
| --input | oklch(0.922 0 0) | #e5e5e5 | Yes | |
| --ring | oklch(0.708 0 0) | #a1a1a1 | Yes | |
| --chart-1sky | oklch(0.828 0.111 230.318) | #74d4ff | No — hex is clipped | |
| --chart-2sky | oklch(0.685 0.169 237.323) | #00a6f4 | No — hex is clipped | |
| --chart-3sky | oklch(0.588 0.158 241.966) | #0084d1 | No — hex is clipped | |
| --chart-4sky | oklch(0.5 0.134 242.749) | #0069a8 | No — hex is clipped | |
| --chart-5sky | oklch(0.443 0.11 240.79) | #00598a | No — hex is clipped | |
| --sidebar | oklch(0.985 0 0) | #fafafa | Yes | |
| --sidebar-foreground | oklch(0.145 0 0) | #0a0a0a | Yes | |
| --sidebar-primarysky | oklch(0.588 0.158 241.966) | #0084d1 | No — hex is clipped | |
| --sidebar-primary-foregroundsky | oklch(0.977 0.013 236.62) | #f0f9ff | No — hex is clipped | |
| --sidebar-accent | oklch(0.97 0 0) | #f5f5f5 | Yes | |
| --sidebar-accent-foreground | oklch(0.205 0 0) | #171717 | Yes | |
| --sidebar-border | oklch(0.922 0 0) | #e5e5e5 | Yes | |
| --sidebar-ring | oklch(0.708 0 0) | #a1a1a1 | Yes |
dark mode tokens
| Token | Swatch | oklch() | Hex | In sRGB |
|---|---|---|---|---|
| --background | oklch(0.145 0 0) | #0a0a0a | Yes | |
| --foreground | oklch(0.985 0 0) | #fafafa | Yes | |
| --card | oklch(0.205 0 0) | #171717 | Yes | |
| --card-foreground | oklch(0.985 0 0) | #fafafa | Yes | |
| --popover | oklch(0.205 0 0) | #171717 | Yes | |
| --popover-foreground | oklch(0.985 0 0) | #fafafa | Yes | |
| --primarysky | oklch(0.443 0.11 240.79) | #00598a | No — hex is clipped | |
| --primary-foregroundsky | oklch(0.977 0.013 236.62) | #f0f9ff | No — hex is clipped | |
| --secondarysky | oklch(0.274 0.006 286.033) | #27272a | Yes | |
| --secondary-foregroundsky | oklch(0.985 0 0) | #fafafa | Yes | |
| --muted | oklch(0.269 0 0) | #262626 | Yes | |
| --muted-foreground | oklch(0.708 0 0) | #a1a1a1 | Yes | |
| --accent | oklch(0.269 0 0) | #262626 | Yes | |
| --accent-foreground | oklch(0.985 0 0) | #fafafa | Yes | |
| --destructive | oklch(0.704 0.191 22.216) | #ff6467 | No — hex is clipped | |
| --border | oklch(1 0 0 / 10%) | #ffffff (10% alpha) | Yes | |
| --input | oklch(1 0 0 / 15%) | #ffffff (15% alpha) | Yes | |
| --ring | oklch(0.556 0 0) | #737373 | Yes | |
| --chart-1sky | oklch(0.828 0.111 230.318) | #74d4ff | No — hex is clipped | |
| --chart-2sky | oklch(0.685 0.169 237.323) | #00a6f4 | No — hex is clipped | |
| --chart-3sky | oklch(0.588 0.158 241.966) | #0084d1 | No — hex is clipped | |
| --chart-4sky | oklch(0.5 0.134 242.749) | #0069a8 | No — hex is clipped | |
| --chart-5sky | oklch(0.443 0.11 240.79) | #00598a | No — hex is clipped | |
| --sidebar | oklch(0.205 0 0) | #171717 | Yes | |
| --sidebar-foreground | oklch(0.985 0 0) | #fafafa | Yes | |
| --sidebar-primarysky | oklch(0.685 0.169 237.323) | #00a6f4 | No — hex is clipped | |
| --sidebar-primary-foregroundsky | oklch(0.293 0.066 243.157) | #052f4a | Yes | |
| --sidebar-accent | oklch(0.269 0 0) | #262626 | Yes | |
| --sidebar-accent-foreground | oklch(0.985 0 0) | #fafafa | Yes | |
| --sidebar-border | oklch(1 0 0 / 10%) | #ffffff (10% alpha) | Yes | |
| --sidebar-ring | oklch(0.556 0 0) | #737373 | Yes |
Contrast audit (WCAG 2)
20 of 22 checked pairs meet AA 4.5:1. Pairs with a translucent side are skipped. A suggested fix keeps hue and chroma and moves the foreground's lightness to the nearest AA value, using the same logic as the contrast checker.
| Pair | Ratio | APCA Lc | AA 4.5 | AA large 3 | Fix / details |
|---|---|---|---|---|---|
| foreground on background#0a0a0a on #ffffff | 19.79:1 | 106 | Pass | Pass | Pair page → |
| card-foreground on card#0a0a0a on #ffffff | 19.79:1 | 106 | Pass | Pass | Pair page → |
| popover-foreground on popover#0a0a0a on #ffffff | 19.79:1 | 106 | Pass | Pass | Pair page → |
| primary-foreground on primary#f0f9ff on #0069a8 | 5.49:1 | -79 | Pass | Pass | |
| secondary-foreground on secondary#18181b on #f4f4f5 | 16.11:1 | 98 | Pass | Pass | |
| muted-foreground on muted#737373 on #f5f5f5 | 4.34:1 | 67 | Fail | Pass | Set muted-foreground to oklch(0.516 0.000 0.0) (#676767, 5.18:1). |
| muted-foreground on background#737373 on #ffffff | 4.74:1 | 73 | Pass | Pass | Pair page → |
| accent-foreground on accent#171717 on #f5f5f5 | 16.44:1 | 99 | Pass | Pass | |
| destructive on background#e7000b on #ffffff | 4.76:1 | 70 | Pass | Pass | Pair page → |
| sidebar-foreground on sidebar#0a0a0a on #fafafa | 18.96:1 | 103 | Pass | Pass | |
| sidebar-primary-foreground on sidebar-primary#f0f9ff on #0084d1 | 3.77:1 | -67 | Fail | Pass | Set sidebar-primary-foreground to oklch(0.177 0.012 236.6) (#0c1216, 4.68:1). |
| Pair | Ratio | APCA Lc | AA 4.5 | AA large 3 | Fix / details |
|---|---|---|---|---|---|
| foreground on background#fafafa on #0a0a0a | 18.96:1 | -104 | Pass | Pass | |
| card-foreground on card#fafafa on #171717 | 17.17:1 | -104 | Pass | Pass | |
| popover-foreground on popover#fafafa on #171717 | 17.17:1 | -104 | Pass | Pass | |
| primary-foreground on primary#f0f9ff on #00598a | 7.04:1 | -85 | Pass | Pass | |
| secondary-foreground on secondary#fafafa on #27272a | 14.27:1 | -101 | Pass | Pass | |
| muted-foreground on muted#a1a1a1 on #262626 | 5.85:1 | -48 | Pass | Pass | |
| muted-foreground on background#a1a1a1 on #0a0a0a | 7.66:1 | -51 | Pass | Pass | |
| accent-foreground on accent#fafafa on #262626 | 14.49:1 | -101 | Pass | Pass | |
| destructive on background#ff6467 on #0a0a0a | 6.85:1 | -47 | Pass | Pass | |
| sidebar-foreground on sidebar#fafafa on #171717 | 17.17:1 | -104 | Pass | Pass | |
| sidebar-primary-foreground on sidebar-primary#052f4a on #00a6f4 | 5.13:1 | 46 | Pass | Pass |
Copy code
These are only the variables the Sky accent theme overrides. Add them after a base colour's variables in your globals.css.
shadcn/ui v4 globals.css (OKLCH)
:root {
--primary: oklch(0.5 0.134 242.749);
--primary-foreground: oklch(0.977 0.013 236.62);
--secondary: oklch(0.967 0.001 286.375);
--secondary-foreground: oklch(0.21 0.006 285.885);
--chart-1: oklch(0.828 0.111 230.318);
--chart-2: oklch(0.685 0.169 237.323);
--chart-3: oklch(0.588 0.158 241.966);
--chart-4: oklch(0.5 0.134 242.749);
--chart-5: oklch(0.443 0.11 240.79);
--sidebar-primary: oklch(0.588 0.158 241.966);
--sidebar-primary-foreground: oklch(0.977 0.013 236.62);
}
.dark {
--primary: oklch(0.443 0.11 240.79);
--primary-foreground: oklch(0.977 0.013 236.62);
--secondary: oklch(0.274 0.006 286.033);
--secondary-foreground: oklch(0.985 0 0);
--chart-1: oklch(0.828 0.111 230.318);
--chart-2: oklch(0.685 0.169 237.323);
--chart-3: oklch(0.588 0.158 241.966);
--chart-4: oklch(0.5 0.134 242.749);
--chart-5: oklch(0.443 0.11 240.79);
--sidebar-primary: oklch(0.685 0.169 237.323);
--sidebar-primary-foreground: oklch(0.293 0.066 243.157);
}Tailwind v4 @theme inline mapping
@theme inline {
--color-primary: var(--primary);
--color-primary-foreground: var(--primary-foreground);
--color-secondary: var(--secondary);
--color-secondary-foreground: var(--secondary-foreground);
--color-chart-1: var(--chart-1);
--color-chart-2: var(--chart-2);
--color-chart-3: var(--chart-3);
--color-chart-4: var(--chart-4);
--color-chart-5: var(--chart-5);
--color-sidebar-primary: var(--sidebar-primary);
--color-sidebar-primary-foreground: var(--sidebar-primary-foreground);
}Hex fallback (for tools without OKLCH support)
:root {
--primary: #0069a8;
--primary-foreground: #f0f9ff;
--secondary: #f4f4f5;
--secondary-foreground: #18181b;
--chart-1: #74d4ff;
--chart-2: #00a6f4;
--chart-3: #0084d1;
--chart-4: #0069a8;
--chart-5: #00598a;
--sidebar-primary: #0084d1;
--sidebar-primary-foreground: #f0f9ff;
}
.dark {
--primary: #00598a;
--primary-foreground: #f0f9ff;
--secondary: #27272a;
--secondary-foreground: #fafafa;
--chart-1: #74d4ff;
--chart-2: #00a6f4;
--chart-3: #0084d1;
--chart-4: #0069a8;
--chart-5: #00598a;
--sidebar-primary: #00a6f4;
--sidebar-primary-foreground: #052f4a;
}Related colours
Light primary: oklch(0.5 0.134 242.749) · #0069a8