#57B0FF#57B0FF

#57B0FF is a light, vivid cyan. Relative luminance 0.403; OKLCH L 73.7% C 0.143 H 247.9°. Best body text is #000000 at 9.06:1 contrast (WCAG AA passes).

Color values

HEX#57B0FF
RGBrgb(87, 176, 255)
HSLhsl(208, 100%, 67%)
HSVhsv(208, 66%, 100%)
CMYKcmyk(65.9%, 31%, 0%, 0%)
CIE-LABlab(69.68, -2.58, -46.94)
CIE-LCHlch(69.68, 47.01, 266.85°)
OKLaboklab(73.66% -0.0539 -0.1328)
OKLCHoklch(73.66% 0.143 247.9)
XYZxyz(37.4991, 40.2930, 100.3894)
Luminance0.4030 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#57B0FF #FFA657
analogous
#57FFFA #57B0FF #575CFF
triadic
#57B0FF #FF57B0 #B0FF57
tetradic
#57B0FF #FA57FF #FFA657 #5CFF57
square
#57B0FF #FA57FF #FFA657 #5CFF57
split-complementary
#57B0FF #FF575C #FFFA57
monochromatic
#0074DC #1A93FF #57B0FF #94CDFF #D1EAFF

Accessibility & contrast

On white

2.32
#57B0FF on #FFFFFF
AA ✗AA large ✗AAA ✗

On black

9.06
#57B0FF on #000000
AA ✓AA large ✓AAA ✓

Best text color

#000000 on #57B0FF
9.06:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##57B0FF#FFFFFF#000000##000000
##57B0FF1.002.329.069.06
#FFFFFF2.321.0021.0021.00
#0000009.0621.001.001.00
##0000009.0621.001.001.00

Color blindness preview

Protanopia (red-blind)
#8DB3FF
Deuteranopia (green-blind)
#76A3FD
Tritanopia (blue-blind)
#00C3CC
Achromatopsia (no color)
#AAAAAA

Design tokens & code

CSS
--color: #57b0ff;
/* rgb */ color: rgb(87, 176, 255);
/* oklch */ color: oklch(73.7% 0.143 247.9);
Tailwind
colors: {
  custom: {
    50: '#96c7ff',
    500: '#57b0ff',
    950: '#000000',
  },
}
SCSS
$custom: #57b0ff;
$custom-light: #96c7ff;
$custom-dark: #000000;
JSON
{
  "hex": "#57b0ff",
  "rgb": {
    "r": 87,
    "g": 176,
    "b": 255
  },
  "hsl": {
    "h": 208.214,
    "s": 100,
    "l": 67.059
  },
  "oklch": {
    "l": 0.73657,
    "c": 0.14331,
    "h": 247.9
  },
  "luminance": 0.40297
}

Semantic roles & 50–950 ramp

primary
#57B0FF
secondary
#F4D7BE
accent
#6C00E6
background
#FAFCFF
surface
#F3F8FF
border
#CDD1D7
text
#0F1318
muted
#7F8286

Preview Lab

Preview with #57B0FF

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

Preview Lab → · Contrast checker → · Palette generator →

#57B0FF Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva