#57B8EB#57B8EB

#57B8EB is a light, moderate cyan. Relative luminance 0.423; OKLCH L 74.5% C 0.117 H 234.4°. Best body text is #000000 at 9.46:1 contrast (WCAG AA passes).

Color values

HEX#57B8EB
RGBrgb(87, 184, 235)
HSLhsl(201, 79%, 63%)
HSVhsv(201, 63%, 92%)
CMYKcmyk(63%, 21.7%, 0%, 7.8%)
CIE-LABlab(71.08, -13.37, -33.91)
CIE-LCHlch(71.08, 36.45, 248.48°)
OKLaboklab(74.48% -0.0681 -0.095)
OKLCHoklch(74.48% 0.117 234.4)
XYZxyz(36.0606, 42.3017, 84.8458)
Luminance0.4230 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#57B8EB #EB8A57
analogous
#57EBD4 #57B8EB #576EEB
triadic
#57B8EB #EB57B8 #B8EB57
tetradic
#57B8EB #D457EB #EB8A57 #6EEB57
square
#57B8EB #D457EB #EB8A57 #6EEB57
split-complementary
#57B8EB #EB576E #EBD457
monochromatic
#157CB2 #20A1E4 #57B8EB #8ECFF2 #C4E6F8

Accessibility & contrast

On white

2.22
#57B8EB on #FFFFFF
AA ✗AA large ✗AAA ✗

On black

9.46
#57B8EB on #000000
AA ✓AA large ✓AAA ✓

Best text color

#000000 on #57B8EB
9.46:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##57B8EB#FFFFFF#000000##000000
##57B8EB1.002.229.469.46
#FFFFFF2.221.0021.0021.00
#0000009.4621.001.001.00
##0000009.4621.001.001.00

Color blindness preview

Protanopia (red-blind)
#9FB6ED
Deuteranopia (green-blind)
#8BA7EA
Tritanopia (blue-blind)
#00C5C9
Achromatopsia (no color)
#AEAEAE

Design tokens & code

CSS
--color: #57b8eb;
/* rgb */ color: rgb(87, 184, 235);
/* oklch */ color: oklch(74.5% 0.117 234.4);
Tailwind
colors: {
  custom: {
    50: '#94cdf1',
    500: '#57b8eb',
    950: '#000000',
  },
}
SCSS
$custom: #57b8eb;
$custom-light: #94cdf1;
$custom-dark: #000000;
JSON
{
  "hex": "#57b8eb",
  "rgb": {
    "r": 87,
    "g": 184,
    "b": 235
  },
  "hsl": {
    "h": 200.676,
    "s": 78.723,
    "l": 63.137
  },
  "oklch": {
    "l": 0.74484,
    "c": 0.11691,
    "h": 234.4
  },
  "luminance": 0.42305
}

Semantic roles & 50–950 ramp

primary
#57B8EB
secondary
#E9C7B4
accent
#520ADB
background
#F9FCFE
surface
#F2F9FD
border
#CCD2D5
text
#0E1316
muted
#7E8284

Preview Lab

Preview with #57B8EB

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

Preview Lab → · Contrast checker → · Palette generator →

#57B8EB Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva