#57B3E4#57B3E4

#57B3E4 is a light, moderate cyan. Relative luminance 0.399; OKLCH L 73.0% C 0.113 H 234.5°. Best body text is #000000 at 8.97:1 contrast (WCAG AA passes).

Color values

HEX#57B3E4
RGBrgb(87, 179, 228)
HSLhsl(201, 72%, 62%)
HSVhsv(201, 62%, 89%)
CMYKcmyk(61.8%, 21.5%, 0%, 10.6%)
CIE-LABlab(69.37, -12.88, -32.74)
CIE-LCHlch(69.37, 35.18, 248.52°)
OKLaboklab(73.04% -0.0653 -0.0917)
OKLCHoklch(73.04% 0.113 234.5)
XYZxyz(34.0488, 39.8645, 79.2840)
Luminance0.3987 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#57B3E4 #E48857
analogous
#57E4CF #57B3E4 #576DE4
triadic
#57B3E4 #E457B3 #B3E457
tetradic
#57B3E4 #CF57E4 #E48857 #6DE457
square
#57B3E4 #CF57E4 #E48857 #6DE457
split-complementary
#57B3E4 #E4576D #E4CF57
monochromatic
#1B76A6 #239BDB #57B3E4 #8CCBEC #C0E3F5

Accessibility & contrast

On white

2.34
#57B3E4 on #FFFFFF
AA ✗AA large ✗AAA ✗

On black

8.97
#57B3E4 on #000000
AA ✓AA large ✓AAA ✓

Best text color

#000000 on #57B3E4
8.97:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##57B3E4#FFFFFF#000000##000000
##57B3E41.002.348.978.97
#FFFFFF2.341.0021.0021.00
#0000008.9721.001.001.00
##0000008.9721.001.001.00

Color blindness preview

Protanopia (red-blind)
#9BB1E6
Deuteranopia (green-blind)
#88A3E3
Tritanopia (blue-blind)
#00C0C3
Achromatopsia (no color)
#A9A9A9

Design tokens & code

CSS
--color: #57b3e4;
/* rgb */ color: rgb(87, 179, 228);
/* oklch */ color: oklch(73.0% 0.113 234.5);
Tailwind
colors: {
  custom: {
    50: '#93c9ec',
    500: '#57b3e4',
    950: '#000000',
  },
}
SCSS
$custom: #57b3e4;
$custom-light: #93c9ec;
$custom-dark: #000000;
JSON
{
  "hex": "#57b3e4",
  "rgb": {
    "r": 87,
    "g": 179,
    "b": 228
  },
  "hsl": {
    "h": 200.851,
    "s": 72.308,
    "l": 61.765
  },
  "oklch": {
    "l": 0.73037,
    "c": 0.11258,
    "h": 234.5
  },
  "luminance": 0.39868
}

Semantic roles & 50–950 ramp

primary
#57B3E4
secondary
#E6C3B1
accent
#5511D4
background
#F9FCFE
surface
#F2F8FD
border
#CCD1D5
text
#0E1316
muted
#7E8284

Preview Lab

Preview with #57B3E4

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

Preview Lab → · Contrast checker → · Palette generator →

#57B3E4 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva