#57B7E9#57B7E9

#57B7E9 is a light, moderate cyan. Relative luminance 0.418; OKLCH L 74.2% C 0.116 H 234.1°. Best body text is #000000 at 9.36:1 contrast (WCAG AA passes).

Color values

HEX#57B7E9
RGBrgb(87, 183, 233)
HSLhsl(201, 77%, 63%)
HSVhsv(201, 63%, 91%)
CMYKcmyk(62.7%, 21.5%, 0%, 8.6%)
CIE-LABlab(70.71, -13.46, -33.39)
CIE-LCHlch(70.71, 36.00, 248.04°)
OKLaboklab(74.17% -0.0678 -0.0935)
OKLCHoklch(74.17% 0.116 234.1)
XYZxyz(35.5663, 41.7728, 83.2636)
Luminance0.4178 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#57B7E9 #E98957
analogous
#57E9D2 #57B7E9 #576EE9
triadic
#57B7E9 #E957B7 #B7E957
tetradic
#57B7E9 #D257E9 #E98957 #6EE957
square
#57B7E9 #D257E9 #E98957 #6EE957
split-complementary
#57B7E9 #E9576E #E9D257
monochromatic
#177BAF #21A0E2 #57B7E9 #8DCEF0 #C3E5F7

Accessibility & contrast

On white

2.24
#57B7E9 on #FFFFFF
AA ✗AA large ✗AAA ✗

On black

9.36
#57B7E9 on #000000
AA ✓AA large ✓AAA ✓

Best text color

#000000 on #57B7E9
9.36:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##57B7E9#FFFFFF#000000##000000
##57B7E91.002.249.369.36
#FFFFFF2.241.0021.0021.00
#0000009.3621.001.001.00
##0000009.3621.001.001.00

Color blindness preview

Protanopia (red-blind)
#9FB5EB
Deuteranopia (green-blind)
#8BA6E8
Tritanopia (blue-blind)
#00C4C8
Achromatopsia (no color)
#ADADAD

Design tokens & code

CSS
--color: #57b7e9;
/* rgb */ color: rgb(87, 183, 233);
/* oklch */ color: oklch(74.2% 0.116 234.1);
Tailwind
colors: {
  custom: {
    50: '#94ccf0',
    500: '#57b7e9',
    950: '#000000',
  },
}
SCSS
$custom: #57b7e9;
$custom-light: #94ccf0;
$custom-dark: #000000;
JSON
{
  "hex": "#57b7e9",
  "rgb": {
    "r": 87,
    "g": 183,
    "b": 233
  },
  "hsl": {
    "h": 200.548,
    "s": 76.842,
    "l": 62.745
  },
  "oklch": {
    "l": 0.74168,
    "c": 0.1155,
    "h": 234.1
  },
  "luminance": 0.41776
}

Semantic roles & 50–950 ramp

primary
#57B7E9
secondary
#E8C6B3
accent
#530CD9
background
#F9FCFE
surface
#F2F8FD
border
#CCD1D5
text
#0E1316
muted
#7E8284

Preview Lab

Preview with #57B7E9

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

Preview Lab → · Contrast checker → · Palette generator →

#57B7E9 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva