#57B0EE#57B0EE

#57B0EE is a light, vivid cyan. Relative luminance 0.393; OKLCH L 72.8% C 0.124 H 241.7°. Best body text is #000000 at 8.85:1 contrast (WCAG AA passes).

Color values

HEX#57B0EE
RGBrgb(87, 176, 238)
HSLhsl(205, 82%, 64%)
HSVhsv(205, 63%, 93%)
CMYKcmyk(63.4%, 26.1%, 0%, 6.7%)
CIE-LABlab(68.93, -8.09, -38.88)
CIE-LCHlch(68.93, 39.71, 258.24°)
OKLaboklab(72.82% -0.059 -0.1094)
OKLCHoklch(72.82% 0.124 241.7)
XYZxyz(34.8826, 39.2464, 86.6093)
Luminance0.3925 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#57B0EE #EE9557
analogous
#57EEE1 #57B0EE #5764EE
triadic
#57B0EE #EE57B0 #B0EE57
tetradic
#57B0EE #E157EE #EE9557 #64EE57
square
#57B0EE #E157EE #EE9557 #64EE57
split-complementary
#57B0EE #EE5764 #EEE157
monochromatic
#1374B8 #1F96E8 #57B0EE #8FCAF4 #C6E4F9

Accessibility & contrast

On white

2.37
#57B0EE on #FFFFFF
AA ✗AA large ✗AAA ✗

On black

8.85
#57B0EE on #000000
AA ✓AA large ✓AAA ✓

Best text color

#000000 on #57B0EE
8.85:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##57B0EE#FFFFFF#000000##000000
##57B0EE1.002.378.858.85
#FFFFFF2.371.0021.0021.00
#0000008.8521.001.001.00
##0000008.8521.001.001.00

Color blindness preview

Protanopia (red-blind)
#94B1F1
Deuteranopia (green-blind)
#7FA2ED
Tritanopia (blue-blind)
#00BFC5
Achromatopsia (no color)
#A8A8A8

Design tokens & code

CSS
--color: #57b0ee;
/* rgb */ color: rgb(87, 176, 238);
/* oklch */ color: oklch(72.8% 0.124 241.7);
Tailwind
colors: {
  custom: {
    50: '#94c7f3',
    500: '#57b0ee',
    950: '#000000',
  },
}
SCSS
$custom: #57b0ee;
$custom-light: #94c7f3;
$custom-dark: #000000;
JSON
{
  "hex": "#57b0ee",
  "rgb": {
    "r": 87,
    "g": 176,
    "b": 238
  },
  "hsl": {
    "h": 204.636,
    "s": 81.622,
    "l": 63.725
  },
  "oklch": {
    "l": 0.7282,
    "c": 0.12428,
    "h": 241.7
  },
  "luminance": 0.3925
}

Semantic roles & 50–950 ramp

primary
#57B0EE
secondary
#EBCCB6
accent
#6008DE
background
#F9FCFE
surface
#F2F8FD
border
#CCD1D5
text
#0E1317
muted
#7E8285

Preview Lab

Preview with #57B0EE

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

Preview Lab → · Contrast checker → · Palette generator →

#57B0EE Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva