#57A9FF#57A9FF

#57A9FF is a light, vivid cyan. Relative luminance 0.376; OKLCH L 72.1% C 0.149 H 251.6°. Best body text is #000000 at 8.52:1 contrast (WCAG AA passes).

Color values

HEX#57A9FF
RGBrgb(87, 169, 255)
HSLhsl(211, 100%, 67%)
HSVhsv(211, 66%, 100%)
CMYKcmyk(65.9%, 33.7%, 0%, 0%)
CIE-LABlab(67.74, 1.36, -49.99)
CIE-LCHlch(67.74, 50.01, 271.56°)
OKLaboklab(72.13% -0.0472 -0.1417)
OKLCHoklch(72.13% 0.149 251.6)
XYZxyz(36.1618, 37.6185, 99.9437)
Luminance0.3762 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#57A9FF #FFAD57
analogous
#57FDFF #57A9FF #5957FF
triadic
#57A9FF #FF57A9 #A9FF57
tetradic
#57A9FF #FF57FD #FFAD57 #57FF59
square
#57A9FF #FF57FD #FFAD57 #57FF59
split-complementary
#57A9FF #FF5957 #FDFF57
monochromatic
#006BDC #1A8AFF #57A9FF #94C8FF #D1E8FF

Accessibility & contrast

On white

2.46
#57A9FF on #FFFFFF
AA ✗AA large ✗AAA ✗

On black

8.52
#57A9FF on #000000
AA ✓AA large ✓AAA ✓

Best text color

#000000 on #57A9FF
8.52:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##57A9FF#FFFFFF#000000##000000
##57A9FF1.002.468.528.52
#FFFFFF2.461.0021.0021.00
#0000008.5221.001.001.00
##0000008.5221.001.001.00

Color blindness preview

Protanopia (red-blind)
#83AEFF
Deuteranopia (green-blind)
#6C9EFD
Tritanopia (blue-blind)
#00BDC8
Achromatopsia (no color)
#A5A5A5

Design tokens & code

CSS
--color: #57a9ff;
/* rgb */ color: rgb(87, 169, 255);
/* oklch */ color: oklch(72.1% 0.149 251.6);
Tailwind
colors: {
  custom: {
    50: '#96c2ff',
    500: '#57a9ff',
    950: '#000000',
  },
}
SCSS
$custom: #57a9ff;
$custom-light: #96c2ff;
$custom-dark: #000000;
JSON
{
  "hex": "#57a9ff",
  "rgb": {
    "r": 87,
    "g": 169,
    "b": 255
  },
  "hsl": {
    "h": 210.714,
    "s": 100,
    "l": 67.059
  },
  "oklch": {
    "l": 0.72134,
    "c": 0.1494,
    "h": 251.6
  },
  "luminance": 0.37622
}

Semantic roles & 50–950 ramp

primary
#57A9FF
secondary
#F4DABE
accent
#7500E6
background
#FAFBFF
surface
#F3F7FF
border
#CDD0D7
text
#0F1218
muted
#7F8186

Preview Lab

Preview with #57A9FF

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

Preview Lab → · Contrast checker → · Palette generator →

#57A9FF Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva