#57D3EF#57D3EF

#57D3EF is a light, moderate cyan. Relative luminance 0.548; OKLCH L 80.8% C 0.115 H 215.3°. Best body text is #000000 at 11.97:1 contrast (WCAG AA passes).

Color values

HEX#57D3EF
RGBrgb(87, 211, 239)
HSLhsl(191, 83%, 64%)
HSVhsv(191, 64%, 94%)
CMYKcmyk(63.6%, 11.7%, 0%, 6.3%)
CIE-LABlab(78.95, -26.03, -23.97)
CIE-LCHlch(78.95, 35.39, 222.64°)
OKLaboklab(80.83% -0.0941 -0.0666)
OKLCHoklch(80.83% 0.115 215.3)
XYZxyz(42.7983, 54.8422, 89.9747)
Luminance0.5485 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#57D3EF #EF7357
analogous
#57EFBF #57D3EF #5787EF
triadic
#57D3EF #EF57D3 #D3EF57
tetradic
#57D3EF #BF57EF #EF7357 #87EF57
square
#57D3EF #BF57EF #EF7357 #87EF57
split-complementary
#57D3EF #EF5787 #EFBF57
monochromatic
#129BBA #1FC4EA #57D3EF #8FE2F4 #C7F0FA

Accessibility & contrast

On white

1.75
#57D3EF on #FFFFFF
AA ✗AA large ✗AAA ✗

On black

11.97
#57D3EF on #000000
AA ✓AA large ✓AAA ✓

Best text color

#000000 on #57D3EF
11.97:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##57D3EF#FFFFFF#000000##000000
##57D3EF1.001.7511.9711.97
#FFFFFF1.751.0021.0021.00
#00000011.9721.001.001.00
##00000011.9721.001.001.00

Color blindness preview

Protanopia (red-blind)
#BFCDF1
Deuteranopia (green-blind)
#A9BCEF
Tritanopia (blue-blind)
#00DDDC
Achromatopsia (no color)
#C3C3C3

Design tokens & code

CSS
--color: #57d3ef;
/* rgb */ color: rgb(87, 211, 239);
/* oklch */ color: oklch(80.8% 0.115 215.3);
Tailwind
colors: {
  custom: {
    50: '#96e0f4',
    500: '#57d3ef',
    950: '#000000',
  },
}
SCSS
$custom: #57d3ef;
$custom-light: #96e0f4;
$custom-dark: #000000;
JSON
{
  "hex": "#57d3ef",
  "rgb": {
    "r": 87,
    "g": 211,
    "b": 239
  },
  "hsl": {
    "h": 191.053,
    "s": 82.609,
    "l": 63.922
  },
  "oklch": {
    "l": 0.80825,
    "c": 0.11531,
    "h": 215.3
  },
  "luminance": 0.54847
}

Semantic roles & 50–950 ramp

primary
#57D3EF
secondary
#B94A31
accent
#2E06DF
background
#FCFEFF
surface
#F5FCFE
border
#CFD5D6
text
#0F1517
muted
#808485

Preview Lab

Preview with #57D3EF

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

Preview Lab → · Contrast checker → · Palette generator →

#57D3EF Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva