#57A5EE#57A5EE

#57A5EE is a light, vivid cyan. Relative luminance 0.351; OKLCH L 70.4% C 0.132 H 248.8°. Best body text is #000000 at 8.02:1 contrast (WCAG AA passes).

Color values

HEX#57A5EE
RGBrgb(87, 165, 238)
HSLhsl(209, 82%, 64%)
HSVhsv(209, 63%, 93%)
CMYKcmyk(63.4%, 30.7%, 0%, 6.7%)
CIE-LABlab(65.83, -1.97, -43.73)
CIE-LCHlch(65.83, 43.77, 267.43°)
OKLaboklab(70.38% -0.0478 -0.1235)
OKLCHoklch(70.38% 0.132 248.8)
XYZxyz(32.8125, 35.1063, 85.9193)
Luminance0.3511 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#57A5EE #EEA057
analogous
#57EEEC #57A5EE #5759EE
triadic
#57A5EE #EE57A5 #A5EE57
tetradic
#57A5EE #EC57EE #EEA057 #59EE57
square
#57A5EE #EC57EE #EEA057 #59EE57
split-complementary
#57A5EE #EE5759 #EEEC57
monochromatic
#1368B8 #1F87E8 #57A5EE #8FC3F4 #C6E1F9

Accessibility & contrast

On white

2.62
#57A5EE on #FFFFFF
AA ✗AA large ✗AAA ✗

On black

8.02
#57A5EE on #000000
AA ✓AA large ✓AAA ✓

Best text color

#000000 on #57A5EE
8.02:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##57A5EE#FFFFFF#000000##000000
##57A5EE1.002.628.028.02
#FFFFFF2.621.0021.0021.00
#0000008.0221.001.001.00
##0000008.0221.001.001.00

Color blindness preview

Protanopia (red-blind)
#85A8F1
Deuteranopia (green-blind)
#7199ED
Tritanopia (blue-blind)
#00B6BF
Achromatopsia (no color)
#A0A0A0

Design tokens & code

CSS
--color: #57a5ee;
/* rgb */ color: rgb(87, 165, 238);
/* oklch */ color: oklch(70.4% 0.132 248.8);
Tailwind
colors: {
  custom: {
    50: '#94bff4',
    500: '#57a5ee',
    950: '#000000',
  },
}
SCSS
$custom: #57a5ee;
$custom-light: #94bff4;
$custom-dark: #000000;
JSON
{
  "hex": "#57a5ee",
  "rgb": {
    "r": 87,
    "g": 165,
    "b": 238
  },
  "hsl": {
    "h": 209.007,
    "s": 81.622,
    "l": 63.725
  },
  "oklch": {
    "l": 0.70376,
    "c": 0.13248,
    "h": 248.8
  },
  "luminance": 0.3511
}

Semantic roles & 50–950 ramp

primary
#57A5EE
secondary
#EBD0B6
accent
#6F08DE
background
#F9FBFE
surface
#F2F7FD
border
#CCD0D5
text
#0E1217
muted
#7E8185

Preview Lab

Preview with #57A5EE

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

Preview Lab → · Contrast checker → · Palette generator →

#57A5EE Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva