#57B6EB#57B6EB

#57B6EB is a light, moderate cyan. Relative luminance 0.415; OKLCH L 74.0% C 0.118 H 235.9°. Best body text is #000000 at 9.30:1 contrast (WCAG AA passes).

Color values

HEX#57B6EB
RGBrgb(87, 182, 235)
HSLhsl(201, 79%, 63%)
HSVhsv(201, 63%, 92%)
CMYKcmyk(63%, 22.6%, 0%, 7.8%)
CIE-LABlab(70.51, -12.30, -34.79)
CIE-LCHlch(70.51, 36.90, 250.53°)
OKLaboklab(74.03% -0.0661 -0.0976)
OKLCHoklch(74.03% 0.118 235.9)
XYZxyz(35.6481, 41.4767, 84.7083)
Luminance0.4148 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#57B6EB #EB8C57
analogous
#57EBD6 #57B6EB #576CEB
triadic
#57B6EB #EB57B6 #B6EB57
tetradic
#57B6EB #D657EB #EB8C57 #6CEB57
square
#57B6EB #D657EB #EB8C57 #6CEB57
split-complementary
#57B6EB #EB576C #EBD657
monochromatic
#157AB2 #209EE4 #57B6EB #8ECEF2 #C4E6F8

Accessibility & contrast

On white

2.26
#57B6EB on #FFFFFF
AA ✗AA large ✗AAA ✗

On black

9.30
#57B6EB on #000000
AA ✓AA large ✓AAA ✓

Best text color

#000000 on #57B6EB
9.30:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##57B6EB#FFFFFF#000000##000000
##57B6EB1.002.269.309.30
#FFFFFF2.261.0021.0021.00
#0000009.3021.001.001.00
##0000009.3021.001.001.00

Color blindness preview

Protanopia (red-blind)
#9DB5EE
Deuteranopia (green-blind)
#89A6EA
Tritanopia (blue-blind)
#00C4C8
Achromatopsia (no color)
#ACACAC

Design tokens & code

CSS
--color: #57b6eb;
/* rgb */ color: rgb(87, 182, 235);
/* oklch */ color: oklch(74.0% 0.118 235.9);
Tailwind
colors: {
  custom: {
    50: '#94cbf1',
    500: '#57b6eb',
    950: '#000000',
  },
}
SCSS
$custom: #57b6eb;
$custom-light: #94cbf1;
$custom-dark: #000000;
JSON
{
  "hex": "#57b6eb",
  "rgb": {
    "r": 87,
    "g": 182,
    "b": 235
  },
  "hsl": {
    "h": 201.486,
    "s": 78.723,
    "l": 63.137
  },
  "oklch": {
    "l": 0.74031,
    "c": 0.11783,
    "h": 235.9
  },
  "luminance": 0.4148
}

Semantic roles & 50–950 ramp

primary
#57B6EB
secondary
#E9C7B4
accent
#550ADB
background
#F9FCFE
surface
#F2F8FD
border
#CCD1D5
text
#0E1316
muted
#7E8284

Preview Lab

Preview with #57B6EB

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

Preview Lab → · Contrast checker → · Palette generator →

#57B6EB Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva