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#17577f

a dark, vivid blue · cool · closest name: steelblue

RGB
23, 87, 127
HSL
203°, 69%, 29%
CMYK
82, 32, 0, 50
Luminance
0.0853

Every format

HEX#17577f
RGBrgb(23, 87, 127)
HSLhsl(203, 69%, 29%)
CMYKcmyk(82%, 32%, 0%, 50%)
LABlab(35.1 -4.8 -28.1)
LCHlch(35.1 28.5 260.3)
OKLCHoklch(0.438 0.091 241.4)

Copy-ready code

/* CSS */
color: #17577f;
background-color: #17577f;
/* Tailwind (arbitrary) */
class="text-[#17577f] bg-[#17577f]"
/* SCSS */
$brand: #17577f;
/* SwiftUI */
Color(red: 0.090, green: 0.341, blue: 0.498)
/* Android */
Color.parseColor("#17577f")

Accessibility — WCAG contrast

Aa
#17577f on white: 7.76:1
AA ✓ pass · AA-large · AAA
Aa
#17577f on black: 2.71:1
AA ✗ fail · AA-large · AAA
true color
protanopia
deuteranopia
tritanopia

RGB percentages

Red9.0%
Green34.1%
Blue49.8%

CMYK percentages

Cyan81.9%
Magenta31.5%
Yellow0.0%
Key (black)50.2%

Color previews

#17577f text on a black background

contrast 2.71:1

Card sample

#17577f text on a white background

contrast 7.76:1

Card sample

CSS3 live lab

Text font color

The quick brown fox

color: #17577f;
Background color
Panel with #17577f background
background-color: #17577f;
Text shadow — hex

Glowing headline

text-shadow: 2px 2px 8px #17577f;
Text shadow — RGB

Soft neon halo

text-shadow: 0 0 14px rgba(23, 87, 127, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(23, 87, 127, 0.45);
Border & gradient
Gradient panel
border: 3px solid #17577f;
background: linear-gradient(135deg, #17577f, #1C177F);

Monochromatic scale

Palettes built from #17577f

Shades — darker

Tints — lighter

Hue & tone neighbors

Color harmonies

Nearest named colors

Work with #17577f in the Color Lab