#57B4E4#57B4E4

#57B4E4 is a light, moderate cyan. Relative luminance 0.403; OKLCH L 73.3% C 0.112 H 233.7°. Best body text is #000000 at 9.05:1 contrast (WCAG AA passes).

Color values

HEX#57B4E4
RGBrgb(87, 180, 228)
HSLhsl(200, 72%, 62%)
HSVhsv(200, 62%, 89%)
CMYKcmyk(61.8%, 21.1%, 0%, 10.6%)
CIE-LABlab(69.66, -13.42, -32.29)
CIE-LCHlch(69.66, 34.97, 247.44°)
OKLaboklab(73.26% -0.0664 -0.0904)
OKLCHoklch(73.26% 0.112 233.7)
XYZxyz(34.2499, 40.2668, 79.3510)
Luminance0.4027 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#57B4E4 #E48757
analogous
#57E4CE #57B4E4 #576DE4
triadic
#57B4E4 #E457B4 #B4E457
tetradic
#57B4E4 #CE57E4 #E48757 #6DE457
square
#57B4E4 #CE57E4 #E48757 #6DE457
split-complementary
#57B4E4 #E4576D #E4CE57
monochromatic
#1B77A6 #239CDB #57B4E4 #8CCCEC #C0E3F5

Accessibility & contrast

On white

2.32
#57B4E4 on #FFFFFF
AA ✗AA large ✗AAA ✗

On black

9.05
#57B4E4 on #000000
AA ✓AA large ✓AAA ✓

Best text color

#000000 on #57B4E4
9.05:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##57B4E4#FFFFFF#000000##000000
##57B4E41.002.329.059.05
#FFFFFF2.321.0021.0021.00
#0000009.0521.001.001.00
##0000009.0521.001.001.00

Color blindness preview

Protanopia (red-blind)
#9DB2E6
Deuteranopia (green-blind)
#89A4E3
Tritanopia (blue-blind)
#00C1C4
Achromatopsia (no color)
#AAAAAA

Design tokens & code

CSS
--color: #57b4e4;
/* rgb */ color: rgb(87, 180, 228);
/* oklch */ color: oklch(73.3% 0.112 233.7);
Tailwind
colors: {
  custom: {
    50: '#93caec',
    500: '#57b4e4',
    950: '#000000',
  },
}
SCSS
$custom: #57b4e4;
$custom-light: #93caec;
$custom-dark: #000000;
JSON
{
  "hex": "#57b4e4",
  "rgb": {
    "r": 87,
    "g": 180,
    "b": 228
  },
  "hsl": {
    "h": 200.426,
    "s": 72.308,
    "l": 61.765
  },
  "oklch": {
    "l": 0.73264,
    "c": 0.11216,
    "h": 233.7
  },
  "luminance": 0.4027
}

Semantic roles & 50–950 ramp

primary
#57B4E4
secondary
#E6C3B1
accent
#5411D4
background
#F9FCFE
surface
#F2F8FD
border
#CCD1D5
text
#0E1316
muted
#7E8284

Preview Lab

Preview with #57B4E4

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

Preview Lab → · Contrast checker → · Palette generator →

#57B4E4 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva