#57A5E9#57A5E9

#57A5E9 is a light, vivid cyan. Relative luminance 0.348; OKLCH L 70.1% C 0.127 H 247.1°. Best body text is #000000 at 7.96:1 contrast (WCAG AA passes).

Color values

HEX#57A5E9
RGBrgb(87, 165, 233)
HSLhsl(208, 77%, 63%)
HSVhsv(208, 63%, 91%)
CMYKcmyk(62.7%, 29.2%, 0%, 8.6%)
CIE-LABlab(65.61, -3.59, -41.34)
CIE-LCHlch(65.61, 41.50, 265.03°)
OKLaboklab(70.12% -0.0493 -0.1166)
OKLCHoklch(70.12% 0.127 247.1)
XYZxyz(32.0881, 34.8166, 82.1042)
Luminance0.3482 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#57A5E9 #E99B57
analogous
#57E9E4 #57A5E9 #575CE9
triadic
#57A5E9 #E957A5 #A5E957
tetradic
#57A5E9 #E457E9 #E99B57 #5CE957
square
#57A5E9 #E457E9 #E99B57 #5CE957
split-complementary
#57A5E9 #E9575C #E9E457
monochromatic
#1768AF #2188E2 #57A5E9 #8DC2F0 #C3DFF7

Accessibility & contrast

On white

2.64
#57A5E9 on #FFFFFF
AA ✗AA large ✗AAA ✗

On black

7.96
#57A5E9 on #000000
AA ✓AA large ✓AAA ✓

Best text color

#000000 on #57A5E9
7.96:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##57A5E9#FFFFFF#000000##000000
##57A5E91.002.647.967.96
#FFFFFF2.641.0021.0021.00
#0000007.9621.001.001.00
##0000007.9621.001.001.00

Color blindness preview

Protanopia (red-blind)
#87A7EC
Deuteranopia (green-blind)
#7499E8
Tritanopia (blue-blind)
#00B5BD
Achromatopsia (no color)
#9F9F9F

Design tokens & code

CSS
--color: #57a5e9;
/* rgb */ color: rgb(87, 165, 233);
/* oklch */ color: oklch(70.1% 0.127 247.1);
Tailwind
colors: {
  custom: {
    50: '#93bff0',
    500: '#57a5e9',
    950: '#000000',
  },
}
SCSS
$custom: #57a5e9;
$custom-light: #93bff0;
$custom-dark: #000000;
JSON
{
  "hex": "#57a5e9",
  "rgb": {
    "r": 87,
    "g": 165,
    "b": 233
  },
  "hsl": {
    "h": 207.945,
    "s": 76.842,
    "l": 62.745
  },
  "oklch": {
    "l": 0.70124,
    "c": 0.12659,
    "h": 247.1
  },
  "luminance": 0.3482
}

Semantic roles & 50–950 ramp

primary
#57A5E9
secondary
#E8CCB3
accent
#6C0CD9
background
#F9FBFE
surface
#F2F7FD
border
#CCD0D5
text
#0E1216
muted
#7E8184

Preview Lab

Preview with #57A5E9

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

Preview Lab → · Contrast checker → · Palette generator →

#57A5E9 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva