#57D9FA#57D9FA

#57D9FA is a very light, vivid cyan. Relative luminance 0.586; OKLCH L 82.6% C 0.121 H 217.7°. Best body text is #000000 at 12.71:1 contrast (WCAG AA passes).

Color values

HEX#57D9FA
RGBrgb(87, 217, 250)
HSLhsl(192, 94%, 66%)
HSVhsv(192, 65%, 98%)
CMYKcmyk(65.2%, 13.2%, 0%, 2%)
CIE-LABlab(81.04, -25.75, -26.64)
CIE-LCHlch(81.04, 37.05, 225.97°)
OKLaboklab(82.63% -0.0959 -0.0742)
OKLCHoklch(82.63% 0.121 217.7)
XYZxyz(45.9916, 58.5491, 99.3012)
Luminance0.5855 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#57D9FA #FA7857
analogous
#57FAC9 #57D9FA #5787FA
triadic
#57D9FA #FA57D9 #D9FA57
tetradic
#57D9FA #C957FA #FA7857 #87FA57
square
#57D9FA #C957FA #FA7857 #87FA57
split-complementary
#57D9FA #FA5787 #FAC957
monochromatic
#06A7D0 #1CCCF8 #57D9FA #92E6FC #CEF4FE

Accessibility & contrast

On white

1.65
#57D9FA on #FFFFFF
AA ✗AA large ✗AAA ✗

On black

12.71
#57D9FA on #000000
AA ✓AA large ✓AAA ✓

Best text color

#000000 on #57D9FA
12.71:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##57D9FA#FFFFFF#000000##000000
##57D9FA1.001.6512.7112.71
#FFFFFF1.651.0021.0021.00
#00000012.7121.001.001.00
##00000012.7121.001.001.00

Color blindness preview

Protanopia (red-blind)
#C4D3FC
Deuteranopia (green-blind)
#ACC2FA
Tritanopia (blue-blind)
#00E4E3
Achromatopsia (no color)
#C9C9C9

Design tokens & code

CSS
--color: #57d9fa;
/* rgb */ color: rgb(87, 217, 250);
/* oklch */ color: oklch(82.6% 0.121 217.7);
Tailwind
colors: {
  custom: {
    50: '#98e5fc',
    500: '#57d9fa',
    950: '#000000',
  },
}
SCSS
$custom: #57d9fa;
$custom-light: #98e5fc;
$custom-dark: #000000;
JSON
{
  "hex": "#57d9fa",
  "rgb": {
    "r": 87,
    "g": 217,
    "b": 250
  },
  "hsl": {
    "h": 192.147,
    "s": 94.22,
    "l": 66.078
  },
  "oklch": {
    "l": 0.82631,
    "c": 0.12124,
    "h": 217.7
  },
  "luminance": 0.58554
}

Semantic roles & 50–950 ramp

primary
#57D9FA
secondary
#CB4A2A
accent
#2E00E6
background
#FCFEFF
surface
#F5FCFF
border
#CFD5D7
text
#0F1517
muted
#808485

Preview Lab

Preview with #57D9FA

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

Preview Lab → · Contrast checker → · Palette generator →

#57D9FA Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva