#57CBE9#57CBE9

#57CBE9 is a light, moderate cyan. Relative luminance 0.506; OKLCH L 78.7% C 0.112 H 217.8°. Best body text is #000000 at 11.12:1 contrast (WCAG AA passes).

Color values

HEX#57CBE9
RGBrgb(87, 203, 233)
HSLhsl(192, 77%, 63%)
HSVhsv(192, 63%, 91%)
CMYKcmyk(62.7%, 12.9%, 0%, 8.6%)
CIE-LABlab(76.45, -23.82, -24.57)
CIE-LCHlch(76.45, 34.22, 225.90°)
OKLaboklab(78.75% -0.0883 -0.0684)
OKLCHoklch(78.75% 0.112 217.8)
XYZxyz(39.9884, 50.6171, 84.7376)
Luminance0.5062 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#57CBE9 #E97557
analogous
#57E9BE #57CBE9 #5782E9
triadic
#57CBE9 #E957CB #CBE957
tetradic
#57CBE9 #BE57E9 #E97557 #82E957
square
#57CBE9 #BE57E9 #E97557 #82E957
split-complementary
#57CBE9 #E95782 #E9BE57
monochromatic
#1790AF #21BAE2 #57CBE9 #8DDCF0 #C3ECF7

Accessibility & contrast

On white

1.89
#57CBE9 on #FFFFFF
AA ✗AA large ✗AAA ✗

On black

11.12
#57CBE9 on #000000
AA ✓AA large ✓AAA ✓

Best text color

#000000 on #57CBE9
11.12:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##57CBE9#FFFFFF#000000##000000
##57CBE91.001.8911.1211.12
#FFFFFF1.891.0021.0021.00
#00000011.1221.001.001.00
##00000011.1221.001.001.00

Color blindness preview

Protanopia (red-blind)
#B7C5EB
Deuteranopia (green-blind)
#A2B6E9
Tritanopia (blue-blind)
#00D5D4
Achromatopsia (no color)
#BDBDBD

Design tokens & code

CSS
--color: #57cbe9;
/* rgb */ color: rgb(87, 203, 233);
/* oklch */ color: oklch(78.7% 0.112 217.8);
Tailwind
colors: {
  custom: {
    50: '#95dbf0',
    500: '#57cbe9',
    950: '#000000',
  },
}
SCSS
$custom: #57cbe9;
$custom-light: #95dbf0;
$custom-dark: #000000;
JSON
{
  "hex": "#57cbe9",
  "rgb": {
    "r": 87,
    "g": 203,
    "b": 233
  },
  "hsl": {
    "h": 192.329,
    "s": 76.842,
    "l": 62.745
  },
  "oklch": {
    "l": 0.78747,
    "c": 0.11165,
    "h": 217.8
  },
  "luminance": 0.50621
}

Semantic roles & 50–950 ramp

primary
#57CBE9
secondary
#AF4E35
accent
#360CD9
background
#FCFEFF
surface
#F5FBFE
border
#CFD4D6
text
#0E1516
muted
#7F8485

Preview Lab

Preview with #57CBE9

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

Preview Lab → · Contrast checker → · Palette generator →

#57CBE9 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva