#57ADE4#57ADE4

#57ADE4 is a light, moderate cyan. Relative luminance 0.375; OKLCH L 71.7% C 0.116 H 239.3°. Best body text is #000000 at 8.50:1 contrast (WCAG AA passes).

Color values

HEX#57ADE4
RGBrgb(87, 173, 228)
HSLhsl(203, 72%, 62%)
HSVhsv(203, 62%, 89%)
CMYKcmyk(61.8%, 24.1%, 0%, 10.6%)
CIE-LABlab(67.66, -9.63, -35.39)
CIE-LCHlch(67.66, 36.68, 254.78°)
OKLaboklab(71.68% -0.0591 -0.0993)
OKLCHoklch(71.68% 0.116 239.3)
XYZxyz(32.8723, 37.5116, 78.8918)
Luminance0.3751 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#57ADE4 #E48E57
analogous
#57E4D4 #57ADE4 #5767E4
triadic
#57ADE4 #E457AD #ADE457
tetradic
#57ADE4 #D457E4 #E48E57 #67E457
square
#57ADE4 #D457E4 #E48E57 #67E457
split-complementary
#57ADE4 #E45767 #E4D457
monochromatic
#1B70A6 #2393DB #57ADE4 #8CC7EC #C0E0F5

Accessibility & contrast

On white

2.47
#57ADE4 on #FFFFFF
AA ✗AA large ✗AAA ✗

On black

8.50
#57ADE4 on #000000
AA ✓AA large ✓AAA ✓

Best text color

#000000 on #57ADE4
8.50:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##57ADE4#FFFFFF#000000##000000
##57ADE41.002.478.508.50
#FFFFFF2.471.0021.0021.00
#0000008.5021.001.001.00
##0000008.5021.001.001.00

Color blindness preview

Protanopia (red-blind)
#94ADE7
Deuteranopia (green-blind)
#819FE3
Tritanopia (blue-blind)
#00BBC0
Achromatopsia (no color)
#A5A5A5

Design tokens & code

CSS
--color: #57ade4;
/* rgb */ color: rgb(87, 173, 228);
/* oklch */ color: oklch(71.7% 0.116 239.3);
Tailwind
colors: {
  custom: {
    50: '#93c5ec',
    500: '#57ade4',
    950: '#000000',
  },
}
SCSS
$custom: #57ade4;
$custom-light: #93c5ec;
$custom-dark: #000000;
JSON
{
  "hex": "#57ade4",
  "rgb": {
    "r": 87,
    "g": 173,
    "b": 228
  },
  "hsl": {
    "h": 203.404,
    "s": 72.308,
    "l": 61.765
  },
  "oklch": {
    "l": 0.71676,
    "c": 0.1156,
    "h": 239.3
  },
  "luminance": 0.37515
}

Semantic roles & 50–950 ramp

primary
#57ADE4
secondary
#E6C6B1
accent
#5D11D4
background
#F9FCFE
surface
#F2F8FD
border
#CCD1D5
text
#0E1216
muted
#7E8184

Preview Lab

Preview with #57ADE4

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

Preview Lab → · Contrast checker → · Palette generator →

#57ADE4 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva