#57B7EB#57B7EB

#57B7EB is a light, moderate cyan. Relative luminance 0.419; OKLCH L 74.3% C 0.117 H 235.1°. Best body text is #000000 at 9.38:1 contrast (WCAG AA passes).

Color values

HEX#57B7EB
RGBrgb(87, 183, 235)
HSLhsl(201, 79%, 63%)
HSVhsv(201, 63%, 92%)
CMYKcmyk(63%, 22.1%, 0%, 7.8%)
CIE-LABlab(70.79, -12.84, -34.35)
CIE-LCHlch(70.79, 36.67, 249.51°)
OKLaboklab(74.26% -0.0671 -0.0963)
OKLCHoklch(74.26% 0.117 235.1)
XYZxyz(35.8536, 41.8877, 84.7768)
Luminance0.4189 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#57B7EB #EB8B57
analogous
#57EBD5 #57B7EB #576DEB
triadic
#57B7EB #EB57B7 #B7EB57
tetradic
#57B7EB #D557EB #EB8B57 #6DEB57
square
#57B7EB #D557EB #EB8B57 #6DEB57
split-complementary
#57B7EB #EB576D #EBD557
monochromatic
#157BB2 #20A0E4 #57B7EB #8ECEF2 #C4E6F8

Accessibility & contrast

On white

2.24
#57B7EB on #FFFFFF
AA ✗AA large ✗AAA ✗

On black

9.38
#57B7EB on #000000
AA ✓AA large ✓AAA ✓

Best text color

#000000 on #57B7EB
9.38:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##57B7EB#FFFFFF#000000##000000
##57B7EB1.002.249.389.38
#FFFFFF2.241.0021.0021.00
#0000009.3821.001.001.00
##0000009.3821.001.001.00

Color blindness preview

Protanopia (red-blind)
#9EB6ED
Deuteranopia (green-blind)
#8AA7EA
Tritanopia (blue-blind)
#00C5C8
Achromatopsia (no color)
#ADADAD

Design tokens & code

CSS
--color: #57b7eb;
/* rgb */ color: rgb(87, 183, 235);
/* oklch */ color: oklch(74.3% 0.117 235.1);
Tailwind
colors: {
  custom: {
    50: '#94ccf1',
    500: '#57b7eb',
    950: '#000000',
  },
}
SCSS
$custom: #57b7eb;
$custom-light: #94ccf1;
$custom-dark: #000000;
JSON
{
  "hex": "#57b7eb",
  "rgb": {
    "r": 87,
    "g": 183,
    "b": 235
  },
  "hsl": {
    "h": 201.081,
    "s": 78.723,
    "l": 63.137
  },
  "oklch": {
    "l": 0.74258,
    "c": 0.11736,
    "h": 235.1
  },
  "luminance": 0.41891
}

Semantic roles & 50–950 ramp

primary
#57B7EB
secondary
#E9C7B4
accent
#540ADB
background
#F9FCFE
surface
#F2F8FD
border
#CCD1D5
text
#0E1316
muted
#7E8284

Preview Lab

Preview with #57B7EB

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

Preview Lab → · Contrast checker → · Palette generator →

#57B7EB Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva