#357DDB#357DDB

#357DDB is a mid, vivid cyan. Relative luminance 0.205; OKLCH L 59.3% C 0.160 H 256.5°. Best body text is #000000 at 5.11:1 contrast (WCAG AA passes).

Color values

HEX#357DDB
RGBrgb(53, 125, 219)
HSLhsl(214, 70%, 53%)
HSVhsv(214, 76%, 86%)
CMYKcmyk(75.8%, 42.9%, 0%, 14.1%)
CIE-LABlab(52.44, 10.05, -54.48)
CIE-LCHlch(52.44, 55.40, 280.46°)
OKLaboklab(59.27% -0.0376 -0.156)
OKLCHoklch(59.27% 0.16 256.5)
XYZxyz(21.5833, 20.5361, 69.8304)
Luminance0.2054 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#357DDB #DB9335
analogous
#35D0DB #357DDB #4035DB
triadic
#357DDB #DB357D #7DDB35
tetradic
#357DDB #DB35D0 #DB9335 #35DB40
square
#357DDB #DB35D0 #DB9335 #35DB40
split-complementary
#357DDB #DB4035 #D0DB35
monochromatic
#17447F #2060B3 #357DDB #699EE4 #9DC0EE

Accessibility & contrast

On white

4.11
#357DDB on #FFFFFF
AA ✗AA large ✓AAA ✗

On black

5.11
#357DDB on #000000
AA ✓AA large ✓AAA ✗

Best text color

#000000 on #357DDB
5.11:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##357DDB#FFFFFF#000000##000000
##357DDB1.004.115.115.11
#FFFFFF4.111.0021.0021.00
#0000005.1121.001.001.00
##0000005.1121.001.001.00

Color blindness preview

Protanopia (red-blind)
#4E85DF
Deuteranopia (green-blind)
#2F76D9
Tritanopia (blue-blind)
#0093A1
Achromatopsia (no color)
#7D7D7D

Design tokens & code

CSS
--color: #357ddb;
/* rgb */ color: rgb(53, 125, 219);
/* oklch */ color: oklch(59.3% 0.160 256.5);
Tailwind
colors: {
  custom: {
    50: '#83a2e7',
    500: '#357ddb',
    950: '#000000',
  },
}
SCSS
$custom: #357ddb;
$custom-light: #83a2e7;
$custom-dark: #000000;
JSON
{
  "hex": "#357ddb",
  "rgb": {
    "r": 53,
    "g": 125,
    "b": 219
  },
  "hsl": {
    "h": 213.976,
    "s": 69.748,
    "l": 53.333
  },
  "oklch": {
    "l": 0.59269,
    "c": 0.16043,
    "h": 256.5
  },
  "luminance": 0.20539
}

Semantic roles & 50–950 ramp

primary
#357DDB
secondary
#DABB92
accent
#A03BED
background
#F8F9FE
surface
#F0F2FC
border
#CBCCD5
text
#0C0E16
muted
#7D7E84

Preview Lab

Preview with #357DDB

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

Preview Lab → · Contrast checker → · Palette generator →

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