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#1b9fdf

a balanced, electric cyan · cool · closest name: steelblue

RGB
27, 159, 223
HSL
200°, 78%, 49%
CMYK
88, 29, 0, 13
Luminance
0.3036

Every format

HEX#1b9fdf
RGBrgb(27, 159, 223)
HSLhsl(200, 78%, 49%)
CMYKcmyk(88%, 29%, 0%, 13%)
LABlab(62.0 -10.8 -41.6)
LCHlch(62.0 43.0 255.5)
OKLCHoklch(0.667 0.140 237.4)

Copy-ready code

/* CSS */
color: #1b9fdf;
background-color: #1b9fdf;
/* Tailwind (arbitrary) */
class="text-[#1b9fdf] bg-[#1b9fdf]"
/* SCSS */
$brand: #1b9fdf;
/* SwiftUI */
Color(red: 0.106, green: 0.624, blue: 0.875)
/* Android */
Color.parseColor("#1b9fdf")

Accessibility — WCAG contrast

Aa
#1b9fdf on white: 2.97:1
AA ✗ fail · AA-large · AAA
Aa
#1b9fdf on black: 7.07:1
AA ✓ pass · AA-large · AAA
true color
protanopia
deuteranopia
tritanopia

RGB percentages

Red10.6%
Green62.4%
Blue87.5%

CMYK percentages

Cyan87.9%
Magenta28.7%
Yellow0.0%
Key (black)12.5%

Color previews

#1b9fdf text on a black background

contrast 7.07:1

Card sample

#1b9fdf text on a white background

contrast 2.97:1

Card sample

CSS3 live lab

Text font color

The quick brown fox

color: #1b9fdf;
Background color
Panel with #1b9fdf background
background-color: #1b9fdf;
Text shadow — hex

Glowing headline

text-shadow: 2px 2px 8px #1b9fdf;
Text shadow — RGB

Soft neon halo

text-shadow: 0 0 14px rgba(27, 159, 223, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(27, 159, 223, 0.45);
Border & gradient
Gradient panel
border: 3px solid #1b9fdf;
background: linear-gradient(135deg, #1b9fdf, #1B1CDF);

Monochromatic scale

Palettes built from #1b9fdf

Shades — darker

Tints — lighter

Hue & tone neighbors

Color harmonies

Nearest named colors

Work with #1b9fdf in the Color Lab