#57A1EC#57A1EC

#57A1EC is a light, vivid cyan. Relative luminance 0.336; OKLCH L 69.4% C 0.134 H 250.6°. Best body text is #000000 at 7.71:1 contrast (WCAG AA passes).

Color values

HEX#57A1EC
RGBrgb(87, 161, 236)
HSLhsl(210, 80%, 63%)
HSVhsv(210, 63%, 93%)
CMYKcmyk(63.1%, 31.8%, 0%, 7.5%)
CIE-LABlab(64.62, -0.35, -44.54)
CIE-LCHlch(64.62, 44.54, 269.55°)
OKLaboklab(69.39% -0.0443 -0.1259)
OKLCHoklch(69.39% 0.134 250.6)
XYZxyz(31.8101, 33.5690, 84.1437)
Luminance0.3357 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#57A1EC #ECA257
analogous
#57ECEC #57A1EC #5757EC
triadic
#57A1EC #EC57A1 #A1EC57
tetradic
#57A1EC #EC57EC #ECA257 #57EC57
square
#57A1EC #EC57EC #ECA257 #57EC57
split-complementary
#57A1EC #EC5757 #ECEC57
monochromatic
#1464B4 #2082E6 #57A1EC #8EC0F2 #C5DFF8

Accessibility & contrast

On white

2.72
#57A1EC on #FFFFFF
AA ✗AA large ✗AAA ✗

On black

7.71
#57A1EC on #000000
AA ✓AA large ✓AAA ✓

Best text color

#000000 on #57A1EC
7.71:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##57A1EC#FFFFFF#000000##000000
##57A1EC1.002.727.717.71
#FFFFFF2.721.0021.0021.00
#0000007.7121.001.001.00
##0000007.7121.001.001.00

Color blindness preview

Protanopia (red-blind)
#81A5EF
Deuteranopia (green-blind)
#6C96EB
Tritanopia (blue-blind)
#00B3BC
Achromatopsia (no color)
#9D9D9D

Design tokens & code

CSS
--color: #57a1ec;
/* rgb */ color: rgb(87, 161, 236);
/* oklch */ color: oklch(69.4% 0.134 250.6);
Tailwind
colors: {
  custom: {
    50: '#93bcf2',
    500: '#57a1ec',
    950: '#000000',
  },
}
SCSS
$custom: #57a1ec;
$custom-light: #93bcf2;
$custom-dark: #000000;
JSON
{
  "hex": "#57a1ec",
  "rgb": {
    "r": 87,
    "g": 161,
    "b": 236
  },
  "hsl": {
    "h": 210.201,
    "s": 79.679,
    "l": 63.333
  },
  "oklch": {
    "l": 0.69394,
    "c": 0.13351,
    "h": 250.6
  },
  "luminance": 0.33572
}

Semantic roles & 50–950 ramp

primary
#57A1EC
secondary
#EAD0B5
accent
#730ADC
background
#F9FBFE
surface
#F2F6FD
border
#CCD0D5
text
#0E1217
muted
#7E8185

Preview Lab

Preview with #57A1EC

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

Preview Lab → · Contrast checker → · Palette generator →

#57A1EC Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva