#1D3557 Prussian Blue
#1D3557 is Prussian Blue.
#1D3557
Prussian Blue
What are the RGB, HSL, OKLCH and CMYK values of #1D3557?
- HEX
- #1D3557
- RGB
- rgb(29, 53, 87)
- HSL
- hsl(215, 50%, 23%)
- OKLCH
- oklch(32.8% 0.068 257)
- CMYK
- 67, 39, 0, 66
#1D3557 has a contrast ratio of 12.36:1 against white and 1.70:1 against black, so white is the better background for text in this color and light text reads best on it.
Contrast checker
Text color (rows) on background (columns), scored against WCAG 2.2. White and near-black text on this color.
| Text ↓ / Bg → | #1D3557 |
|---|---|
| #1D3557 | Same color |
| White | 12.4AAA |
| Near-black | 1.4Fail |
AAA ≥ 7:1 · AA ≥ 4.5:1 body text· AA18 ≥ 3:1 large text (18pt, or 14pt bold) only
Text that works on each color
- White on #1D3557 · 12.4:1
Tints and shades of #1D3557
Same hue and chroma in OKLCH, lighter to darker.
Colors that go with #1D3557
Six harmony rules built from this color. Open any in the Studio.
- AnalogousNeighboring hues. Calm and cohesive, with little tension.
- ComplementaryOpposite hues. Maximum contrast — strong for accents.
- SplitA hue plus the two neighbors of its opposite. Contrast without the clash.
- TriadicThree evenly spaced hues. Vivid and balanced.
- TetradicFour hues in two complementary pairs. Rich, and easy to overuse.
- MonoOne hue across a range of lightness. Always harmonious.
Color blindness check
About 1 in 12 men and 1 in 200 women see color differently. Simulated with the Machado (2009) model.
No green cones — the most common form. No two swatches become hard to tell apart here.
Export
Copy-paste code, or download the swatches.
:root {
--prussian-blue-1: #1D3557; /* Prussian Blue */
}Palettes, gradients and meshes with #1D3557
Items using this color or one perceptually close to it, closest first.
Palettes (58)
- Cobalt Pottery
- Brass & Ink
- Cherry Blossom Rain
- Flamingo Pool
- Arctic Fox
- Sorbet Stand
- Bioluminescence
- Nordic Morning
- Violet Family
- Deep Sea Data
- Lavender Laundry
- Night Shift
- Slate Studio
- Tropical Punch
- Starlight Ink
- Thistle Moor
- Alpine Lake
- Teal Typewriter
- Desert Bloom
- Salt Marsh
- Tangerine Tram
- Glacier Ledger
- Turquoise Tile
- Digital Matcha
- Coastal Cottage
- Wisteria Arch
- Aqua Studio
- Coastal Grey
- Indigo Denim
- Bluebell Wood
- Kazoku no aka
- Moonlit Orchid
- Sunset Boulevard
- Harbor Fog
- Tidepool
- Blueberry Muffin
- Rain City Neon
- Heather Tweed
- Steel Harbour
- Lagoon Postcard
- Retro Diner
- Lilac Letterpress
- Midnight Arcade
- Butter Green
- Brunch Club
- Aubergine Night
- Reef Snorkel
- Obsidian Gold
- Bubblegum Disco
- Volt Dashboard