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#237bbc

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

RGB
35, 123, 188
HSL
206°, 69%, 44%
CMYK
81, 35, 0, 26
Luminance
0.1815

Every format

HEX#237bbc
RGBrgb(35, 123, 188)
HSLhsl(206, 69%, 44%)
CMYKcmyk(81%, 35%, 0%, 26%)
LABlab(49.7 -2.2 -41.3)
LCHlch(49.7 41.3 266.9)
OKLCHoklch(0.564 0.129 245.8)

Copy-ready code

/* CSS */
color: #237bbc;
background-color: #237bbc;
/* Tailwind (arbitrary) */
class="text-[#237bbc] bg-[#237bbc]"
/* SCSS */
$brand: #237bbc;
/* SwiftUI */
Color(red: 0.137, green: 0.482, blue: 0.737)
/* Android */
Color.parseColor("#237bbc")

Accessibility — WCAG contrast

Aa
#237bbc on white: 4.53:1
AA ✓ pass · AA-large · AAA
Aa
#237bbc on black: 4.63:1
AA ✓ pass · AA-large · AAA
true color
protanopia
deuteranopia
tritanopia

RGB percentages

Red13.7%
Green48.2%
Blue73.7%

CMYK percentages

Cyan81.4%
Magenta34.6%
Yellow0.0%
Key (black)26.3%

Color previews

#237bbc text on a black background

contrast 4.63:1

Card sample

#237bbc text on a white background

contrast 4.53:1

Card sample

CSS3 live lab

Text font color

The quick brown fox

color: #237bbc;
Background color
Panel with #237bbc background
background-color: #237bbc;
Text shadow — hex

Glowing headline

text-shadow: 2px 2px 8px #237bbc;
Text shadow — RGB

Soft neon halo

text-shadow: 0 0 14px rgba(35, 123, 188, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(35, 123, 188, 0.45);
Border & gradient
Gradient panel
border: 3px solid #237bbc;
background: linear-gradient(135deg, #237bbc, #3123BC);

Monochromatic scale

Palettes built from #237bbc

Shades — darker

Tints — lighter

Hue & tone neighbors

Color harmonies

Nearest named colors

Work with #237bbc in the Color Lab