#8BCBFF
#00ED85
#27DEFF
#01F4DF
#0B3D91Cobalt
#1E88E5Blueberry
#00E5A0Eucalyptus
#CCFF90Mint
Aurora Gradient is a vivid complementary color palette tagged vibrant, cold, blue. Near-complementary hues (about 130° apart) make this a high-contrast, attention-grabbing combination. Saturation runs high, so use the brightest color sparingly and let the others carry the surface area. The overall temperature is cool.
Color codes click any value to copy
| Swatch | Name | HEX | RGB | HSL | OKLCH |
|---|---|---|---|---|---|
| Cobalt | #0B3D91 | rgb(11, 61, 145) | hsl(218, 86%, 31%) | oklch(38.6% 0.148 261) | |
| Blueberry | #1E88E5 | rgb(30, 136, 229) | hsl(208, 79%, 51%) | oklch(61.8% 0.167 251) | |
| Eucalyptus | #00E5A0 | rgb(0, 229, 160) | hsl(162, 100%, 45%) | oklch(81.5% 0.177 163) | |
| Mint | #CCFF90 | rgb(204, 255, 144) | hsl(88, 100%, 78%) | oklch(94.0% 0.149 129) |
Why it works and how to use it
The palette holds together thanks to its complementary hue relationship and a strong light-to-dark ladder (78% down to 31% lightness). A natural fit for websites, presentations and branding.
- Background: Mint (#CCFF90) is the lightest color, so it belongs on large surfaces.
- Text: Cobalt (#0B3D91) on #CCFF90 gives 8.74:1, passing WCAG AAA.
- Primary: Eucalyptus (#00E5A0) is the most saturated mid-tone; use it for buttons and links with a border or a darker shade for contrast.
- Accent: Blueberry (#1E88E5) for highlights, badges and hover states.
2 of 6 color pairs pass WCAG AA (4.5:1); the strongest is Cobalt on Mint at 8.74:1.
Preview on a real UI see how the palette feels in context
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Design faster with Aurora Gradient
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
#0B3D91
#1E88E5
#00E5A0
#CCFF90
Color-blind check: all four colors stay distinguishable under protanopia, deuteranopia and tritanopia.
Contrast check WCAG ratios between palette colors
| Pair | Sample | Ratio | Level |
|---|---|---|---|
#0B3D91 on #CCFF90 | Aa | 8.74:1 | AAA |
#0B3D91 on #00E5A0 | Aa | 6.08:1 | AA |
#1E88E5 on #CCFF90 | Aa | 3.2:1 | AA large only |
#0B3D91 on #1E88E5 | Aa | 2.73:1 | Fail |
#1E88E5 on #00E5A0 | Aa | 2.23:1 | Fail |
#00E5A0 on #CCFF90 | Aa | 1.44:1 | Fail |
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