#357BC4#357BC4

#357BC4 is a mid, vivid cyan. Relative luminance 0.189; OKLCH L 57.4% C 0.133 H 252.0°. Best body text is #000000 at 4.78:1 contrast (WCAG AA passes).

Color values

HEX#357BC4
RGBrgb(53, 123, 196)
HSLhsl(211, 57%, 49%)
HSVhsv(211, 73%, 77%)
CMYKcmyk(73%, 37.2%, 0%, 23.1%)
CIE-LABlab(50.58, 2.85, -44.38)
CIE-LCHlch(50.58, 44.48, 273.68°)
OKLaboklab(57.4% -0.041 -0.1264)
OKLCHoklch(57.4% 0.133 252)
XYZxyz(18.5112, 18.9063, 54.8875)
Luminance0.1891 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#357BC4 #C47E35
analogous
#35C3C4 #357BC4 #3635C4
triadic
#357BC4 #C4357B #7BC435
tetradic
#357BC4 #C435C3 #C47E35 #35C436
square
#357BC4 #C435C3 #C47E35 #35C436
split-complementary
#357BC4 #C43635 #C3C435
monochromatic
#1B3F64 #285D94 #357BC4 #629AD4 #92B9E1

Accessibility & contrast

On white

4.39
#357BC4 on #FFFFFF
AA ✗AA large ✓AAA ✗

On black

4.78
#357BC4 on #000000
AA ✓AA large ✓AAA ✗

Best text color

#000000 on #357BC4
4.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##357BC4#FFFFFF#000000##000000
##357BC41.004.394.784.78
#FFFFFF4.391.0021.0021.00
#0000004.7821.001.001.00
##0000004.7821.001.001.00

Color blindness preview

Protanopia (red-blind)
#5980C7
Deuteranopia (green-blind)
#4472C3
Tritanopia (blue-blind)
#008C96
Achromatopsia (no color)
#787878

Design tokens & code

CSS
--color: #357bc4;
/* rgb */ color: rgb(53, 123, 196);
/* oklch */ color: oklch(57.4% 0.133 252.0);
Tailwind
colors: {
  custom: {
    50: '#7ea0d6',
    500: '#357bc4',
    950: '#000000',
  },
}
SCSS
$custom: #357bc4;
$custom-light: #7ea0d6;
$custom-dark: #000000;
JSON
{
  "hex": "#357bc4",
  "rgb": {
    "r": 53,
    "g": 123,
    "b": 196
  },
  "hsl": {
    "h": 210.629,
    "s": 57.43,
    "l": 48.824
  },
  "oklch": {
    "l": 0.57402,
    "c": 0.13285,
    "h": 252
  },
  "luminance": 0.18908
}

Semantic roles & 50–950 ramp

primary
#357BC4
secondary
#CCAB88
accent
#9647E1
background
#F8F9FD
surface
#EFF2FA
border
#CACCD3
text
#0B0E14
muted
#7C7E83

Preview Lab

Preview with #357BC4

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →

#357BC4 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva