#EEF4FF
#A9C6FF
#4C7DFF
#1B2A49
#EEF4FFFrost
#92CEF9Baby Blue
#0090DASteel Blue
#072E46Prussian Blue
Steel Blue & Frost Sky is a vivid monochromatic color palette tagged modern, cold, white. A monochromatic set: the same hue family from Prussian Blue down to Frost. 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 |
|---|---|---|---|---|---|
| Frost | #EEF4FF | rgb(238, 244, 255) | hsl(219, 100%, 97%) | oklch(96.6% 0.016 263) | |
| Baby Blue | #92CEF9 | rgb(146, 206, 249) | hsl(205, 90%, 77%) | oklch(82.6% 0.086 240) | |
| Steel Blue | #0090DA | rgb(0, 144, 218) | hsl(200, 100%, 43%) | oklch(62.7% 0.150 242) | |
| Prussian Blue | #072E46 | rgb(7, 46, 70) | hsl(203, 82%, 15%) | oklch(28.8% 0.061 241) |
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 (97% down to 15% lightness). A natural fit for websites, presentations and branding.
- Background: Frost (#EEF4FF) is the lightest color, so it belongs on large surfaces.
- Text: Prussian Blue (#072E46) on #EEF4FF gives 12.78:1, passing WCAG AAA.
- Primary: Steel Blue (#0090DA) is the most saturated mid-tone; use it for buttons and links (3.17:1 against the background, fine for UI elements).
- Accent: Baby Blue (#92CEF9) for highlights, badges and hover states.
2 of 6 color pairs pass WCAG AA (4.5:1); the strongest is Frost on Prussian Blue at 12.78:1.
Preview on a real UI see how the palette feels in context
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Design faster with Steel Blue & Frost Sky
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
#EEF4FF
#92CEF9
#0090DA
#072E46
Color-blind check: all four colors stay distinguishable under protanopia, deuteranopia and tritanopia.
Contrast check WCAG ratios between palette colors
| Pair | Sample | Ratio | Level |
|---|---|---|---|
#EEF4FF on #072E46 | Aa | 12.78:1 | AAA |
#92CEF9 on #072E46 | Aa | 8.34:1 | AAA |
#0090DA on #072E46 | Aa | 4.03:1 | AA large only |
#EEF4FF on #0090DA | Aa | 3.17:1 | AA large only |
#92CEF9 on #0090DA | Aa | 2.07:1 | Fail |
#EEF4FF on #92CEF9 | Aa | 1.53:1 | Fail |
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